Home / 11,496.24-15,869.45-7,721.61

Finding the Fourth Proportional to 11,496.24, 15,869.45 and 7,721.61

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Solution

The fourth proportional to 11,496.24, 15,869.45 and 7,721.61 is: 10,658.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,496.24 : 15,869.45 = 7,721.61 : x
  2. Step 2: Convert to fraction form
    11,496.24/15,869.45 = 7,721.61/x
  3. Step 3: Cross multiply
    11,496.24x = 15,869.45 × 7,721.61
  4. Step 4: Simplify right side
    11,496.24x = 122,537,665.21
  5. Step 5: Solve for x
    x = 122,537,665.21/11,496.24
  6. Step 6: Final answer
    x = 10,658.93

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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.