Home / 15,918.68-23,863.18-5,381.38

Finding the Fourth Proportional to 15,918.68, 23,863.18 and 5,381.38

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Solution

The fourth proportional to 15,918.68, 23,863.18 and 5,381.38 is: 8,067.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,918.68 : 23,863.18 = 5,381.38 : x
  2. Step 2: Convert to fraction form
    15,918.68/23,863.18 = 5,381.38/x
  3. Step 3: Cross multiply
    15,918.68x = 23,863.18 × 5,381.38
  4. Step 4: Simplify right side
    15,918.68x = 128,416,693.37
  5. Step 5: Solve for x
    x = 128,416,693.37/15,918.68
  6. Step 6: Final answer
    x = 8,067.04

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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.