Home / 9,338.38-12,887.85-5,360.38

Finding the Fourth Proportional to 9,338.38, 12,887.85 and 5,360.38

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Solution

The fourth proportional to 9,338.38, 12,887.85 and 5,360.38 is: 7,397.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,338.38 : 12,887.85 = 5,360.38 : x
  2. Step 2: Convert to fraction form
    9,338.38/12,887.85 = 5,360.38/x
  3. Step 3: Cross multiply
    9,338.38x = 12,887.85 × 5,360.38
  4. Step 4: Simplify right side
    9,338.38x = 69,083,773.38
  5. Step 5: Solve for x
    x = 69,083,773.38/9,338.38
  6. Step 6: Final answer
    x = 7,397.83

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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.