Home / 15,631.38-23,447.21-5,243.13

Finding the Fourth Proportional to 15,631.38, 23,447.21 and 5,243.13

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Solution

The fourth proportional to 15,631.38, 23,447.21 and 5,243.13 is: 7,864.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,631.38 : 23,447.21 = 5,243.13 : x
  2. Step 2: Convert to fraction form
    15,631.38/23,447.21 = 5,243.13/x
  3. Step 3: Cross multiply
    15,631.38x = 23,447.21 × 5,243.13
  4. Step 4: Simplify right side
    15,631.38x = 122,936,743.95
  5. Step 5: Solve for x
    x = 122,936,743.95/15,631.38
  6. Step 6: Final answer
    x = 7,864.74

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1.5x scale

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.