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Finding the Fourth Proportional to 15,912.60, 23,869.02 and 5,394.48

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Solution

The fourth proportional to 15,912.60, 23,869.02 and 5,394.48 is: 8,091.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,912.60 : 23,869.02 = 5,394.48 : x
  2. Step 2: Convert to fraction form
    15,912.60/23,869.02 = 5,394.48/x
  3. Step 3: Cross multiply
    15,912.60x = 23,869.02 × 5,394.48
  4. Step 4: Simplify right side
    15,912.60x = 128,760,951.01
  5. Step 5: Solve for x
    x = 128,760,951.01/15,912.60
  6. Step 6: Final answer
    x = 8,091.76

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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.