Home / 9,687.39-13,370.76-6,149.94

Finding the Fourth Proportional to 9,687.39, 13,370.76 and 6,149.94

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Solution

The fourth proportional to 9,687.39, 13,370.76 and 6,149.94 is: 8,488.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,687.39 : 13,370.76 = 6,149.94 : x
  2. Step 2: Convert to fraction form
    9,687.39/13,370.76 = 6,149.94/x
  3. Step 3: Cross multiply
    9,687.39x = 13,370.76 × 6,149.94
  4. Step 4: Simplify right side
    9,687.39x = 82,229,371.75
  5. Step 5: Solve for x
    x = 82,229,371.75/9,687.39
  6. Step 6: Final answer
    x = 8,488.29

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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.