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Finding the Fourth Proportional to 9,950.48, 13,644.34 and 9,691.28

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Solution

The fourth proportional to 9,950.48, 13,644.34 and 9,691.28 is: 13,288.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,950.48 : 13,644.34 = 9,691.28 : x
  2. Step 2: Convert to fraction form
    9,950.48/13,644.34 = 9,691.28/x
  3. Step 3: Cross multiply
    9,950.48x = 13,644.34 × 9,691.28
  4. Step 4: Simplify right side
    9,950.48x = 132,231,119.36
  5. Step 5: Solve for x
    x = 132,231,119.36/9,950.48
  6. Step 6: Final answer
    x = 13,288.92

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.