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Finding the Fourth Proportional to 8,542.08, 12,813.12 and 4,645.44

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Solution

The fourth proportional to 8,542.08, 12,813.12 and 4,645.44 is: 6,968.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,542.08 : 12,813.12 = 4,645.44 : x
  2. Step 2: Convert to fraction form
    8,542.08/12,813.12 = 4,645.44/x
  3. Step 3: Cross multiply
    8,542.08x = 12,813.12 × 4,645.44
  4. Step 4: Simplify right side
    8,542.08x = 59,522,580.17
  5. Step 5: Solve for x
    x = 59,522,580.17/8,542.08
  6. Step 6: Final answer
    x = 6,968.16

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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.