Home / 8,454.08-12,681.12-5,636.96

Finding the Fourth Proportional to 8,454.08, 12,681.12 and 5,636.96

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Solution

The fourth proportional to 8,454.08, 12,681.12 and 5,636.96 is: 8,455.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,454.08 : 12,681.12 = 5,636.96 : x
  2. Step 2: Convert to fraction form
    8,454.08/12,681.12 = 5,636.96/x
  3. Step 3: Cross multiply
    8,454.08x = 12,681.12 × 5,636.96
  4. Step 4: Simplify right side
    8,454.08x = 71,482,966.20
  5. Step 5: Solve for x
    x = 71,482,966.20/8,454.08
  6. Step 6: Final answer
    x = 8,455.44

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Half scale
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Double scale
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Similar ratio
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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.