Home / 10,992.50-15,169.66-6,276.68

Finding the Fourth Proportional to 10,992.50, 15,169.66 and 6,276.68

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Solution

The fourth proportional to 10,992.50, 15,169.66 and 6,276.68 is: 8,661.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.50 : 15,169.66 = 6,276.68 : x
  2. Step 2: Convert to fraction form
    10,992.50/15,169.66 = 6,276.68/x
  3. Step 3: Cross multiply
    10,992.50x = 15,169.66 × 6,276.68
  4. Step 4: Simplify right side
    10,992.50x = 95,215,101.53
  5. Step 5: Solve for x
    x = 95,215,101.53/10,992.50
  6. Step 6: Final answer
    x = 8,661.82

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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.