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Finding the Fourth Proportional to 8,346.72, 12,520.08 and 6,695.13

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Solution

The fourth proportional to 8,346.72, 12,520.08 and 6,695.13 is: 10,042.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,346.72 : 12,520.08 = 6,695.13 : x
  2. Step 2: Convert to fraction form
    8,346.72/12,520.08 = 6,695.13/x
  3. Step 3: Cross multiply
    8,346.72x = 12,520.08 × 6,695.13
  4. Step 4: Simplify right side
    8,346.72x = 83,823,563.21
  5. Step 5: Solve for x
    x = 83,823,563.21/8,346.72
  6. Step 6: Final answer
    x = 10,042.70

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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.