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Finding the Fourth Proportional to 8,760.25, 13,140.17 and 2,520.28

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Solution

The fourth proportional to 8,760.25, 13,140.17 and 2,520.28 is: 3,780.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.25 : 13,140.17 = 2,520.28 : x
  2. Step 2: Convert to fraction form
    8,760.25/13,140.17 = 2,520.28/x
  3. Step 3: Cross multiply
    8,760.25x = 13,140.17 × 2,520.28
  4. Step 4: Simplify right side
    8,760.25x = 33,116,829.35
  5. Step 5: Solve for x
    x = 33,116,829.35/8,760.25
  6. Step 6: Final answer
    x = 3,780.35

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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.