Home / 15,460.28-21,335.71-9,086.78

Finding the Fourth Proportional to 15,460.28, 21,335.71 and 9,086.78

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Solution

The fourth proportional to 15,460.28, 21,335.71 and 9,086.78 is: 12,540.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,460.28 : 21,335.71 = 9,086.78 : x
  2. Step 2: Convert to fraction form
    15,460.28/21,335.71 = 9,086.78/x
  3. Step 3: Cross multiply
    15,460.28x = 21,335.71 × 9,086.78
  4. Step 4: Simplify right side
    15,460.28x = 193,872,902.91
  5. Step 5: Solve for x
    x = 193,872,902.91/15,460.28
  6. Step 6: Final answer
    x = 12,540.06

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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.