Home / 8,657.13-12,962.58-5,520.15

Finding the Fourth Proportional to 8,657.13, 12,962.58 and 5,520.15

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Solution

The fourth proportional to 8,657.13, 12,962.58 and 5,520.15 is: 8,265.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,657.13 : 12,962.58 = 5,520.15 : x
  2. Step 2: Convert to fraction form
    8,657.13/12,962.58 = 5,520.15/x
  3. Step 3: Cross multiply
    8,657.13x = 12,962.58 × 5,520.15
  4. Step 4: Simplify right side
    8,657.13x = 71,555,396.34
  5. Step 5: Solve for x
    x = 71,555,396.34/8,657.13
  6. Step 6: Final answer
    x = 8,265.49

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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.