Home / 7,681.28-11,518.66-3,236.05

Finding the Fourth Proportional to 7,681.28, 11,518.66 and 3,236.05

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Solution

The fourth proportional to 7,681.28, 11,518.66 and 3,236.05 is: 4,852.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,681.28 : 11,518.66 = 3,236.05 : x
  2. Step 2: Convert to fraction form
    7,681.28/11,518.66 = 3,236.05/x
  3. Step 3: Cross multiply
    7,681.28x = 11,518.66 × 3,236.05
  4. Step 4: Simplify right side
    7,681.28x = 37,274,959.93
  5. Step 5: Solve for x
    x = 37,274,959.93/7,681.28
  6. Step 6: Final answer
    x = 4,852.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.