Home / 15,912.74-23,869.19-5,382.86

Finding the Fourth Proportional to 15,912.74, 23,869.19 and 5,382.86

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Solution

The fourth proportional to 15,912.74, 23,869.19 and 5,382.86 is: 8,074.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,912.74 : 23,869.19 = 5,382.86 : x
  2. Step 2: Convert to fraction form
    15,912.74/23,869.19 = 5,382.86/x
  3. Step 3: Cross multiply
    15,912.74x = 23,869.19 × 5,382.86
  4. Step 4: Simplify right side
    15,912.74x = 128,484,402.19
  5. Step 5: Solve for x
    x = 128,484,402.19/15,912.74
  6. Step 6: Final answer
    x = 8,074.31

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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.