Home / 9,299.76-13,945.20-5,405.28

Finding the Fourth Proportional to 9,299.76, 13,945.20 and 5,405.28

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Solution

The fourth proportional to 9,299.76, 13,945.20 and 5,405.28 is: 8,105.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,299.76 : 13,945.20 = 5,405.28 : x
  2. Step 2: Convert to fraction form
    9,299.76/13,945.20 = 5,405.28/x
  3. Step 3: Cross multiply
    9,299.76x = 13,945.20 × 5,405.28
  4. Step 4: Simplify right side
    9,299.76x = 75,377,710.66
  5. Step 5: Solve for x
    x = 75,377,710.66/9,299.76
  6. Step 6: Final answer
    x = 8,105.34

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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.