Home / 17,930.56-26,920.80-9,171.52

Finding the Fourth Proportional to 17,930.56, 26,920.80 and 9,171.52

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Solution

The fourth proportional to 17,930.56, 26,920.80 and 9,171.52 is: 13,770.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,930.56 : 26,920.80 = 9,171.52 : x
  2. Step 2: Convert to fraction form
    17,930.56/26,920.80 = 9,171.52/x
  3. Step 3: Cross multiply
    17,930.56x = 26,920.80 × 9,171.52
  4. Step 4: Simplify right side
    17,930.56x = 246,904,655.62
  5. Step 5: Solve for x
    x = 246,904,655.62/17,930.56
  6. Step 6: Final answer
    x = 13,770.05

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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.