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Finding the Fourth Proportional to 8,912.28, 13,373.22 and 4,295.28

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Solution

The fourth proportional to 8,912.28, 13,373.22 and 4,295.28 is: 6,445.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.28 : 13,373.22 = 4,295.28 : x
  2. Step 2: Convert to fraction form
    8,912.28/13,373.22 = 4,295.28/x
  3. Step 3: Cross multiply
    8,912.28x = 13,373.22 × 4,295.28
  4. Step 4: Simplify right side
    8,912.28x = 57,441,724.40
  5. Step 5: Solve for x
    x = 57,441,724.40/8,912.28
  6. Step 6: Final answer
    x = 6,445.23

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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.