Home / 15,727.32-21,704.28-8,654.04

Finding the Fourth Proportional to 15,727.32, 21,704.28 and 8,654.04

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Solution

The fourth proportional to 15,727.32, 21,704.28 and 8,654.04 is: 11,942.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,727.32 : 21,704.28 = 8,654.04 : x
  2. Step 2: Convert to fraction form
    15,727.32/21,704.28 = 8,654.04/x
  3. Step 3: Cross multiply
    15,727.32x = 21,704.28 × 8,654.04
  4. Step 4: Simplify right side
    15,727.32x = 187,829,707.29
  5. Step 5: Solve for x
    x = 187,829,707.29/15,727.32
  6. Step 6: Final answer
    x = 11,942.89

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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.