Home / 13,397.76-20,089.28-10,642.08

Finding the Fourth Proportional to 13,397.76, 20,089.28 and 10,642.08

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Solution

The fourth proportional to 13,397.76, 20,089.28 and 10,642.08 is: 15,957.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,397.76 : 20,089.28 = 10,642.08 : x
  2. Step 2: Convert to fraction form
    13,397.76/20,089.28 = 10,642.08/x
  3. Step 3: Cross multiply
    13,397.76x = 20,089.28 × 10,642.08
  4. Step 4: Simplify right side
    13,397.76x = 213,791,724.90
  5. Step 5: Solve for x
    x = 213,791,724.90/13,397.76
  6. Step 6: Final answer
    x = 15,957.27

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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.