Home / 14,154.28-19,532.82-7,781.04

Finding the Fourth Proportional to 14,154.28, 19,532.82 and 7,781.04

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Solution

The fourth proportional to 14,154.28, 19,532.82 and 7,781.04 is: 10,737.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,154.28 : 19,532.82 = 7,781.04 : x
  2. Step 2: Convert to fraction form
    14,154.28/19,532.82 = 7,781.04/x
  3. Step 3: Cross multiply
    14,154.28x = 19,532.82 × 7,781.04
  4. Step 4: Simplify right side
    14,154.28x = 151,985,653.73
  5. Step 5: Solve for x
    x = 151,985,653.73/14,154.28
  6. Step 6: Final answer
    x = 10,737.79

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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.