Home / 9,679.73-13,358.17-5,431.73

Finding the Fourth Proportional to 9,679.73, 13,358.17 and 5,431.73

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Solution

The fourth proportional to 9,679.73, 13,358.17 and 5,431.73 is: 7,495.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,679.73 : 13,358.17 = 5,431.73 : x
  2. Step 2: Convert to fraction form
    9,679.73/13,358.17 = 5,431.73/x
  3. Step 3: Cross multiply
    9,679.73x = 13,358.17 × 5,431.73
  4. Step 4: Simplify right side
    9,679.73x = 72,557,912.73
  5. Step 5: Solve for x
    x = 72,557,912.73/9,679.73
  6. Step 6: Final answer
    x = 7,495.87

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Half scale
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Double scale
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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.