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Finding the Fourth Proportional to 11,553.64, 15,948.11 and 6,837.91

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Solution

The fourth proportional to 11,553.64, 15,948.11 and 6,837.91 is: 9,438.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,553.64 : 15,948.11 = 6,837.91 : x
  2. Step 2: Convert to fraction form
    11,553.64/15,948.11 = 6,837.91/x
  3. Step 3: Cross multiply
    11,553.64x = 15,948.11 × 6,837.91
  4. Step 4: Simplify right side
    11,553.64x = 109,051,626.92
  5. Step 5: Solve for x
    x = 109,051,626.92/11,553.64
  6. Step 6: Final answer
    x = 9,438.73

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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.