Home / 15,767.16-23,654.10-5,385.72

Finding the Fourth Proportional to 15,767.16, 23,654.10 and 5,385.72

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Solution

The fourth proportional to 15,767.16, 23,654.10 and 5,385.72 is: 8,079.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,767.16 : 23,654.10 = 5,385.72 : x
  2. Step 2: Convert to fraction form
    15,767.16/23,654.10 = 5,385.72/x
  3. Step 3: Cross multiply
    15,767.16x = 23,654.10 × 5,385.72
  4. Step 4: Simplify right side
    15,767.16x = 127,394,359.45
  5. Step 5: Solve for x
    x = 127,394,359.45/15,767.16
  6. Step 6: Final answer
    x = 8,079.73

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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.