Home / 19,517.78-29,276.64-5,666.78

Finding the Fourth Proportional to 19,517.78, 29,276.64 and 5,666.78

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Solution

The fourth proportional to 19,517.78, 29,276.64 and 5,666.78 is: 8,500.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,517.78 : 29,276.64 = 5,666.78 : x
  2. Step 2: Convert to fraction form
    19,517.78/29,276.64 = 5,666.78/x
  3. Step 3: Cross multiply
    19,517.78x = 29,276.64 × 5,666.78
  4. Step 4: Simplify right side
    19,517.78x = 165,904,278.02
  5. Step 5: Solve for x
    x = 165,904,278.02/19,517.78
  6. Step 6: Final answer
    x = 8,500.16

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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.