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Finding the Fourth Proportional to 8,012.92, 11,068.50 and 6,446.92

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Solution

The fourth proportional to 8,012.92, 11,068.50 and 6,446.92 is: 8,905.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,012.92 : 11,068.50 = 6,446.92 : x
  2. Step 2: Convert to fraction form
    8,012.92/11,068.50 = 6,446.92/x
  3. Step 3: Cross multiply
    8,012.92x = 11,068.50 × 6,446.92
  4. Step 4: Simplify right side
    8,012.92x = 71,357,734.02
  5. Step 5: Solve for x
    x = 71,357,734.02/8,012.92
  6. Step 6: Final answer
    x = 8,905.33

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.