Home / 8,909.57-12,296.12-5,132.88

Finding the Fourth Proportional to 8,909.57, 12,296.12 and 5,132.88

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Solution

The fourth proportional to 8,909.57, 12,296.12 and 5,132.88 is: 7,083.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.57 : 12,296.12 = 5,132.88 : x
  2. Step 2: Convert to fraction form
    8,909.57/12,296.12 = 5,132.88/x
  3. Step 3: Cross multiply
    8,909.57x = 12,296.12 × 5,132.88
  4. Step 4: Simplify right side
    8,909.57x = 63,114,482.76
  5. Step 5: Solve for x
    x = 63,114,482.76/8,909.57
  6. Step 6: Final answer
    x = 7,083.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.