Home / 8,947.24-13,420.87-3,399.28

Finding the Fourth Proportional to 8,947.24, 13,420.87 and 3,399.28

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Solution

The fourth proportional to 8,947.24, 13,420.87 and 3,399.28 is: 5,098.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,947.24 : 13,420.87 = 3,399.28 : x
  2. Step 2: Convert to fraction form
    8,947.24/13,420.87 = 3,399.28/x
  3. Step 3: Cross multiply
    8,947.24x = 13,420.87 × 3,399.28
  4. Step 4: Simplify right side
    8,947.24x = 45,621,294.97
  5. Step 5: Solve for x
    x = 45,621,294.97/8,947.24
  6. Step 6: Final answer
    x = 5,098.92

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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.