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Finding the Fourth Proportional to 8,761.55, 13,132.55 and 3,495.18

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Solution

The fourth proportional to 8,761.55, 13,132.55 and 3,495.18 is: 5,238.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.55 : 13,132.55 = 3,495.18 : x
  2. Step 2: Convert to fraction form
    8,761.55/13,132.55 = 3,495.18/x
  3. Step 3: Cross multiply
    8,761.55x = 13,132.55 × 3,495.18
  4. Step 4: Simplify right side
    8,761.55x = 45,900,626.11
  5. Step 5: Solve for x
    x = 45,900,626.11/8,761.55
  6. Step 6: Final answer
    x = 5,238.87

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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.