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Finding the Fourth Proportional to 8,113.30, 12,169.95 and 5,650.90

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Solution

The fourth proportional to 8,113.30, 12,169.95 and 5,650.90 is: 8,476.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,113.30 : 12,169.95 = 5,650.90 : x
  2. Step 2: Convert to fraction form
    8,113.30/12,169.95 = 5,650.90/x
  3. Step 3: Cross multiply
    8,113.30x = 12,169.95 × 5,650.90
  4. Step 4: Simplify right side
    8,113.30x = 68,771,170.46
  5. Step 5: Solve for x
    x = 68,771,170.46/8,113.30
  6. Step 6: Final answer
    x = 8,476.35

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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.