Home / 10,422.20-14,379.12-5,945.24

Finding the Fourth Proportional to 10,422.20, 14,379.12 and 5,945.24

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Solution

The fourth proportional to 10,422.20, 14,379.12 and 5,945.24 is: 8,202.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,422.20 : 14,379.12 = 5,945.24 : x
  2. Step 2: Convert to fraction form
    10,422.20/14,379.12 = 5,945.24/x
  3. Step 3: Cross multiply
    10,422.20x = 14,379.12 × 5,945.24
  4. Step 4: Simplify right side
    10,422.20x = 85,487,319.39
  5. Step 5: Solve for x
    x = 85,487,319.39/10,422.20
  6. Step 6: Final answer
    x = 8,202.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.