Home / 9,378.73-12,944.19-5,399.11

Finding the Fourth Proportional to 9,378.73, 12,944.19 and 5,399.11

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Solution

The fourth proportional to 9,378.73, 12,944.19 and 5,399.11 is: 7,451.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,378.73 : 12,944.19 = 5,399.11 : x
  2. Step 2: Convert to fraction form
    9,378.73/12,944.19 = 5,399.11/x
  3. Step 3: Cross multiply
    9,378.73x = 12,944.19 × 5,399.11
  4. Step 4: Simplify right side
    9,378.73x = 69,887,105.67
  5. Step 5: Solve for x
    x = 69,887,105.67/9,378.73
  6. Step 6: Final answer
    x = 7,451.66

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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.