Home / 11,565.13-17,351.11-6,638.91

Finding the Fourth Proportional to 11,565.13, 17,351.11 and 6,638.91

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Solution

The fourth proportional to 11,565.13, 17,351.11 and 6,638.91 is: 9,960.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,565.13 : 17,351.11 = 6,638.91 : x
  2. Step 2: Convert to fraction form
    11,565.13/17,351.11 = 6,638.91/x
  3. Step 3: Cross multiply
    11,565.13x = 17,351.11 × 6,638.91
  4. Step 4: Simplify right side
    11,565.13x = 115,192,498.52
  5. Step 5: Solve for x
    x = 115,192,498.52/11,565.13
  6. Step 6: Final answer
    x = 9,960.33

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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.