Home / 13,249.38-18,285.72-7,281.66

Finding the Fourth Proportional to 13,249.38, 18,285.72 and 7,281.66

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Solution

The fourth proportional to 13,249.38, 18,285.72 and 7,281.66 is: 10,049.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.38 : 18,285.72 = 7,281.66 : x
  2. Step 2: Convert to fraction form
    13,249.38/18,285.72 = 7,281.66/x
  3. Step 3: Cross multiply
    13,249.38x = 18,285.72 × 7,281.66
  4. Step 4: Simplify right side
    13,249.38x = 133,150,395.90
  5. Step 5: Solve for x
    x = 133,150,395.90/13,249.38
  6. Step 6: Final answer
    x = 10,049.56

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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.