Home / 11,275.79-15,561.37-6,240.23

Finding the Fourth Proportional to 11,275.79, 15,561.37 and 6,240.23

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Solution

The fourth proportional to 11,275.79, 15,561.37 and 6,240.23 is: 8,611.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,275.79 : 15,561.37 = 6,240.23 : x
  2. Step 2: Convert to fraction form
    11,275.79/15,561.37 = 6,240.23/x
  3. Step 3: Cross multiply
    11,275.79x = 15,561.37 × 6,240.23
  4. Step 4: Simplify right side
    11,275.79x = 97,106,527.92
  5. Step 5: Solve for x
    x = 97,106,527.92/11,275.79
  6. Step 6: Final answer
    x = 8,611.95

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Half scale
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Double scale
Find fourth proportional to 11,276.79, 15,562.75 and 6,241.23
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.