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Finding the Fourth Proportional to 8,760.58, 13,143.08 and 2,520.45

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Solution

The fourth proportional to 8,760.58, 13,143.08 and 2,520.45 is: 3,781.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.58 : 13,143.08 = 2,520.45 : x
  2. Step 2: Convert to fraction form
    8,760.58/13,143.08 = 2,520.45/x
  3. Step 3: Cross multiply
    8,760.58x = 13,143.08 × 2,520.45
  4. Step 4: Simplify right side
    8,760.58x = 33,126,531.57
  5. Step 5: Solve for x
    x = 33,126,531.57/8,760.58
  6. Step 6: Final answer
    x = 3,781.32

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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.