Home / 15,869.31-23,806.13-5,481.87

Finding the Fourth Proportional to 15,869.31, 23,806.13 and 5,481.87

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Solution

The fourth proportional to 15,869.31, 23,806.13 and 5,481.87 is: 8,223.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,869.31 : 23,806.13 = 5,481.87 : x
  2. Step 2: Convert to fraction form
    15,869.31/23,806.13 = 5,481.87/x
  3. Step 3: Cross multiply
    15,869.31x = 23,806.13 × 5,481.87
  4. Step 4: Simplify right side
    15,869.31x = 130,502,082.45
  5. Step 5: Solve for x
    x = 130,502,082.45/15,869.31
  6. Step 6: Final answer
    x = 8,223.55

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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.