Home / 8,761.80-13,142.88-5,061.36

Finding the Fourth Proportional to 8,761.80, 13,142.88 and 5,061.36

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Solution

The fourth proportional to 8,761.80, 13,142.88 and 5,061.36 is: 7,592.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.80 : 13,142.88 = 5,061.36 : x
  2. Step 2: Convert to fraction form
    8,761.80/13,142.88 = 5,061.36/x
  3. Step 3: Cross multiply
    8,761.80x = 13,142.88 × 5,061.36
  4. Step 4: Simplify right side
    8,761.80x = 66,520,847.12
  5. Step 5: Solve for x
    x = 66,520,847.12/8,761.80
  6. Step 6: Final answer
    x = 7,592.14

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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.