Home / 15,375.78-23,034.51-9,122.58

Finding the Fourth Proportional to 15,375.78, 23,034.51 and 9,122.58

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Solution

The fourth proportional to 15,375.78, 23,034.51 and 9,122.58 is: 13,666.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,375.78 : 23,034.51 = 9,122.58 : x
  2. Step 2: Convert to fraction form
    15,375.78/23,034.51 = 9,122.58/x
  3. Step 3: Cross multiply
    15,375.78x = 23,034.51 × 9,122.58
  4. Step 4: Simplify right side
    15,375.78x = 210,134,160.24
  5. Step 5: Solve for x
    x = 210,134,160.24/15,375.78
  6. Step 6: Final answer
    x = 13,666.57

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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.