Home / 10,930.12-15,079.25-6,731.08

Finding the Fourth Proportional to 10,930.12, 15,079.25 and 6,731.08

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Solution

The fourth proportional to 10,930.12, 15,079.25 and 6,731.08 is: 9,286.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,930.12 : 15,079.25 = 6,731.08 : x
  2. Step 2: Convert to fraction form
    10,930.12/15,079.25 = 6,731.08/x
  3. Step 3: Cross multiply
    10,930.12x = 15,079.25 × 6,731.08
  4. Step 4: Simplify right side
    10,930.12x = 101,499,638.09
  5. Step 5: Solve for x
    x = 101,499,638.09/10,930.12
  6. Step 6: Final answer
    x = 9,286.23

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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.