Home / 9,379.23-12,944.91-5,399.61

Finding the Fourth Proportional to 9,379.23, 12,944.91 and 5,399.61

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Solution

The fourth proportional to 9,379.23, 12,944.91 and 5,399.61 is: 7,452.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,379.23 : 12,944.91 = 5,399.61 : x
  2. Step 2: Convert to fraction form
    9,379.23/12,944.91 = 5,399.61/x
  3. Step 3: Cross multiply
    9,379.23x = 12,944.91 × 5,399.61
  4. Step 4: Simplify right side
    9,379.23x = 69,897,465.49
  5. Step 5: Solve for x
    x = 69,897,465.49/9,379.23
  6. Step 6: Final answer
    x = 7,452.37

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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.