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Finding the Fourth Proportional to 8,752.74, 13,129.12 and 3,558.62

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Solution

The fourth proportional to 8,752.74, 13,129.12 and 3,558.62 is: 5,337.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.74 : 13,129.12 = 3,558.62 : x
  2. Step 2: Convert to fraction form
    8,752.74/13,129.12 = 3,558.62/x
  3. Step 3: Cross multiply
    8,752.74x = 13,129.12 × 3,558.62
  4. Step 4: Simplify right side
    8,752.74x = 46,721,549.01
  5. Step 5: Solve for x
    x = 46,721,549.01/8,752.74
  6. Step 6: Final answer
    x = 5,337.93

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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.