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Finding the Fourth Proportional to 8,701.73, 12,008.25 and 4,722.81

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Solution

The fourth proportional to 8,701.73, 12,008.25 and 4,722.81 is: 6,517.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.73 : 12,008.25 = 4,722.81 : x
  2. Step 2: Convert to fraction form
    8,701.73/12,008.25 = 4,722.81/x
  3. Step 3: Cross multiply
    8,701.73x = 12,008.25 × 4,722.81
  4. Step 4: Simplify right side
    8,701.73x = 56,712,638.15
  5. Step 5: Solve for x
    x = 56,712,638.15/8,701.73
  6. Step 6: Final answer
    x = 6,517.40

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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.