Home / 7,376.68-10,163.22-6,720.76

Finding the Fourth Proportional to 7,376.68, 10,163.22 and 6,720.76

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Solution

The fourth proportional to 7,376.68, 10,163.22 and 6,720.76 is: 9,259.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,376.68 : 10,163.22 = 6,720.76 : x
  2. Step 2: Convert to fraction form
    7,376.68/10,163.22 = 6,720.76/x
  3. Step 3: Cross multiply
    7,376.68x = 10,163.22 × 6,720.76
  4. Step 4: Simplify right side
    7,376.68x = 68,304,562.45
  5. Step 5: Solve for x
    x = 68,304,562.45/7,376.68
  6. Step 6: Final answer
    x = 9,259.53

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Find fourth proportional to 3,688.34, 5,081.61 and 3,360.38
Half scale
Find fourth proportional to 14,753.36, 20,326.44 and 13,441.52
Double scale
Find fourth proportional to 7,377.68, 10,164.60 and 6,721.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.