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Finding the Fourth Proportional to 13,371.60, 20,100.60 and 9,502.80

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Solution

The fourth proportional to 13,371.60, 20,100.60 and 9,502.80 is: 14,284.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.60 : 20,100.60 = 9,502.80 : x
  2. Step 2: Convert to fraction form
    13,371.60/20,100.60 = 9,502.80/x
  3. Step 3: Cross multiply
    13,371.60x = 20,100.60 × 9,502.80
  4. Step 4: Simplify right side
    13,371.60x = 191,011,981.68
  5. Step 5: Solve for x
    x = 191,011,981.68/13,371.60
  6. Step 6: Final answer
    x = 14,284.90

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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.