Home / 16,139.68-22,289.28-11,116.96

Finding the Fourth Proportional to 16,139.68, 22,289.28 and 11,116.96

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Solution

The fourth proportional to 16,139.68, 22,289.28 and 11,116.96 is: 15,352.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,139.68 : 22,289.28 = 11,116.96 : x
  2. Step 2: Convert to fraction form
    16,139.68/22,289.28 = 11,116.96/x
  3. Step 3: Cross multiply
    16,139.68x = 22,289.28 × 11,116.96
  4. Step 4: Simplify right side
    16,139.68x = 247,789,034.19
  5. Step 5: Solve for x
    x = 247,789,034.19/16,139.68
  6. Step 6: Final answer
    x = 15,352.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.