Home / 11,867.42-16,377-7,151.96

Finding the Fourth Proportional to 11,867.42, 16,377 and 7,151.96

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Solution

The fourth proportional to 11,867.42, 16,377 and 7,151.96 is: 9,869.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,867.42 : 16,377 = 7,151.96 : x
  2. Step 2: Convert to fraction form
    11,867.42/16,377 = 7,151.96/x
  3. Step 3: Cross multiply
    11,867.42x = 16,377 × 7,151.96
  4. Step 4: Simplify right side
    11,867.42x = 117,127,648.92
  5. Step 5: Solve for x
    x = 117,127,648.92/11,867.42
  6. Step 6: Final answer
    x = 9,869.68

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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.