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Finding the Fourth Proportional to 10,501.92, 15,781.68 and 10,113.12

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Solution

The fourth proportional to 10,501.92, 15,781.68 and 10,113.12 is: 15,197.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,501.92 : 15,781.68 = 10,113.12 : x
  2. Step 2: Convert to fraction form
    10,501.92/15,781.68 = 10,113.12/x
  3. Step 3: Cross multiply
    10,501.92x = 15,781.68 × 10,113.12
  4. Step 4: Simplify right side
    10,501.92x = 159,602,023.64
  5. Step 5: Solve for x
    x = 159,602,023.64/10,501.92
  6. Step 6: Final answer
    x = 15,197.41

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.