Home / 9,381.20-12,944.95-5,402.48

Finding the Fourth Proportional to 9,381.20, 12,944.95 and 5,402.48

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Solution

The fourth proportional to 9,381.20, 12,944.95 and 5,402.48 is: 7,454.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,381.20 : 12,944.95 = 5,402.48 : x
  2. Step 2: Convert to fraction form
    9,381.20/12,944.95 = 5,402.48/x
  3. Step 3: Cross multiply
    9,381.20x = 12,944.95 × 5,402.48
  4. Step 4: Simplify right side
    9,381.20x = 69,934,755.25
  5. Step 5: Solve for x
    x = 69,934,755.25/9,381.20
  6. Step 6: Final answer
    x = 7,454.78

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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.