Home / 11,139.72-16,691.99-4,110.06

Finding the Fourth Proportional to 11,139.72, 16,691.99 and 4,110.06

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Solution

The fourth proportional to 11,139.72, 16,691.99 and 4,110.06 is: 6,158.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.72 : 16,691.99 = 4,110.06 : x
  2. Step 2: Convert to fraction form
    11,139.72/16,691.99 = 4,110.06/x
  3. Step 3: Cross multiply
    11,139.72x = 16,691.99 × 4,110.06
  4. Step 4: Simplify right side
    11,139.72x = 68,605,080.42
  5. Step 5: Solve for x
    x = 68,605,080.42/11,139.72
  6. Step 6: Final answer
    x = 6,158.60

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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.