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Finding the Fourth Proportional to 11,101.76, 16,641.12 and 5,253.92

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Solution

The fourth proportional to 11,101.76, 16,641.12 and 5,253.92 is: 7,875.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,101.76 : 16,641.12 = 5,253.92 : x
  2. Step 2: Convert to fraction form
    11,101.76/16,641.12 = 5,253.92/x
  3. Step 3: Cross multiply
    11,101.76x = 16,641.12 × 5,253.92
  4. Step 4: Simplify right side
    11,101.76x = 87,431,113.19
  5. Step 5: Solve for x
    x = 87,431,113.19/11,101.76
  6. Step 6: Final answer
    x = 7,875.43

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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.