Home / 15,789.04-23,685.72-5,398

Finding the Fourth Proportional to 15,789.04, 23,685.72 and 5,398

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Solution

The fourth proportional to 15,789.04, 23,685.72 and 5,398 is: 8,097.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,789.04 : 23,685.72 = 5,398 : x
  2. Step 2: Convert to fraction form
    15,789.04/23,685.72 = 5,398/x
  3. Step 3: Cross multiply
    15,789.04x = 23,685.72 × 5,398
  4. Step 4: Simplify right side
    15,789.04x = 127,855,516.56
  5. Step 5: Solve for x
    x = 127,855,516.56/15,789.04
  6. Step 6: Final answer
    x = 8,097.74

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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.