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Finding the Fourth Proportional to 8,752.11, 13,127.88 and 5,042.85

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Solution

The fourth proportional to 8,752.11, 13,127.88 and 5,042.85 is: 7,564.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.11 : 13,127.88 = 5,042.85 : x
  2. Step 2: Convert to fraction form
    8,752.11/13,127.88 = 5,042.85/x
  3. Step 3: Cross multiply
    8,752.11x = 13,127.88 × 5,042.85
  4. Step 4: Simplify right side
    8,752.11x = 66,201,929.66
  5. Step 5: Solve for x
    x = 66,201,929.66/8,752.11
  6. Step 6: Final answer
    x = 7,564.11

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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.