Home / 8,760.20-13,142.52-2,520.08

Finding the Fourth Proportional to 8,760.20, 13,142.52 and 2,520.08

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Solution

The fourth proportional to 8,760.20, 13,142.52 and 2,520.08 is: 3,780.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.20 : 13,142.52 = 2,520.08 : x
  2. Step 2: Convert to fraction form
    8,760.20/13,142.52 = 2,520.08/x
  3. Step 3: Cross multiply
    8,760.20x = 13,142.52 × 2,520.08
  4. Step 4: Simplify right side
    8,760.20x = 33,120,136.09
  5. Step 5: Solve for x
    x = 33,120,136.09/8,760.20
  6. Step 6: Final answer
    x = 3,780.75

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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.