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Finding the Fourth Proportional to 26,472.56, 39,700.40 and 8,699.12

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Solution

The fourth proportional to 26,472.56, 39,700.40 and 8,699.12 is: 13,045.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,472.56 : 39,700.40 = 8,699.12 : x
  2. Step 2: Convert to fraction form
    26,472.56/39,700.40 = 8,699.12/x
  3. Step 3: Cross multiply
    26,472.56x = 39,700.40 × 8,699.12
  4. Step 4: Simplify right side
    26,472.56x = 345,358,543.65
  5. Step 5: Solve for x
    x = 345,358,543.65/26,472.56
  6. Step 6: Final answer
    x = 13,045.91

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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.