Home / 15,834.24-21,837.60-9,859.68

Finding the Fourth Proportional to 15,834.24, 21,837.60 and 9,859.68

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Solution

The fourth proportional to 15,834.24, 21,837.60 and 9,859.68 is: 13,597.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,834.24 : 21,837.60 = 9,859.68 : x
  2. Step 2: Convert to fraction form
    15,834.24/21,837.60 = 9,859.68/x
  3. Step 3: Cross multiply
    15,834.24x = 21,837.60 × 9,859.68
  4. Step 4: Simplify right side
    15,834.24x = 215,311,747.97
  5. Step 5: Solve for x
    x = 215,311,747.97/15,834.24
  6. Step 6: Final answer
    x = 13,597.86

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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.