Home / 8,575.20-12,862.80-2,732.40

Finding the Fourth Proportional to 8,575.20, 12,862.80 and 2,732.40

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Solution

The fourth proportional to 8,575.20, 12,862.80 and 2,732.40 is: 4,098.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,575.20 : 12,862.80 = 2,732.40 : x
  2. Step 2: Convert to fraction form
    8,575.20/12,862.80 = 2,732.40/x
  3. Step 3: Cross multiply
    8,575.20x = 12,862.80 × 2,732.40
  4. Step 4: Simplify right side
    8,575.20x = 35,146,314.72
  5. Step 5: Solve for x
    x = 35,146,314.72/8,575.20
  6. Step 6: Final answer
    x = 4,098.60

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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.