Home / 9,187.67-13,781.55-2,613.80

Finding the Fourth Proportional to 9,187.67, 13,781.55 and 2,613.80

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Solution

The fourth proportional to 9,187.67, 13,781.55 and 2,613.80 is: 3,920.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,187.67 : 13,781.55 = 2,613.80 : x
  2. Step 2: Convert to fraction form
    9,187.67/13,781.55 = 2,613.80/x
  3. Step 3: Cross multiply
    9,187.67x = 13,781.55 × 2,613.80
  4. Step 4: Simplify right side
    9,187.67x = 36,022,215.39
  5. Step 5: Solve for x
    x = 36,022,215.39/9,187.67
  6. Step 6: Final answer
    x = 3,920.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.