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Finding the Fourth Proportional to 11,293.92, 16,937.68 and 7,127.68

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Solution

The fourth proportional to 11,293.92, 16,937.68 and 7,127.68 is: 10,689.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,293.92 : 16,937.68 = 7,127.68 : x
  2. Step 2: Convert to fraction form
    11,293.92/16,937.68 = 7,127.68/x
  3. Step 3: Cross multiply
    11,293.92x = 16,937.68 × 7,127.68
  4. Step 4: Simplify right side
    11,293.92x = 120,726,362.98
  5. Step 5: Solve for x
    x = 120,726,362.98/11,293.92
  6. Step 6: Final answer
    x = 10,689.50

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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.