Home / 11,139.04-16,689.12-9,933.76

Finding the Fourth Proportional to 11,139.04, 16,689.12 and 9,933.76

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Solution

The fourth proportional to 11,139.04, 16,689.12 and 9,933.76 is: 14,883.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.04 : 16,689.12 = 9,933.76 : x
  2. Step 2: Convert to fraction form
    11,139.04/16,689.12 = 9,933.76/x
  3. Step 3: Cross multiply
    11,139.04x = 16,689.12 × 9,933.76
  4. Step 4: Simplify right side
    11,139.04x = 165,785,712.69
  5. Step 5: Solve for x
    x = 165,785,712.69/11,139.04
  6. Step 6: Final answer
    x = 14,883.30

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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.