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Finding the Fourth Proportional to 8,901.71, 13,353.59 and 3,970.73

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Solution

The fourth proportional to 8,901.71, 13,353.59 and 3,970.73 is: 5,956.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901.71 : 13,353.59 = 3,970.73 : x
  2. Step 2: Convert to fraction form
    8,901.71/13,353.59 = 3,970.73/x
  3. Step 3: Cross multiply
    8,901.71x = 13,353.59 × 3,970.73
  4. Step 4: Simplify right side
    8,901.71x = 53,023,543.73
  5. Step 5: Solve for x
    x = 53,023,543.73/8,901.71
  6. Step 6: Final answer
    x = 5,956.56

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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.