Home / 15,074.17-20,787.55-13,882.25

Finding the Fourth Proportional to 15,074.17, 20,787.55 and 13,882.25

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Solution

The fourth proportional to 15,074.17, 20,787.55 and 13,882.25 is: 19,143.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,074.17 : 20,787.55 = 13,882.25 : x
  2. Step 2: Convert to fraction form
    15,074.17/20,787.55 = 13,882.25/x
  3. Step 3: Cross multiply
    15,074.17x = 20,787.55 × 13,882.25
  4. Step 4: Simplify right side
    15,074.17x = 288,578,061.34
  5. Step 5: Solve for x
    x = 288,578,061.34/15,074.17
  6. Step 6: Final answer
    x = 19,143.88

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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.