Home / 10,867.78-14,997.66-6,151.96

Finding the Fourth Proportional to 10,867.78, 14,997.66 and 6,151.96

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Solution

The fourth proportional to 10,867.78, 14,997.66 and 6,151.96 is: 8,489.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,867.78 : 14,997.66 = 6,151.96 : x
  2. Step 2: Convert to fraction form
    10,867.78/14,997.66 = 6,151.96/x
  3. Step 3: Cross multiply
    10,867.78x = 14,997.66 × 6,151.96
  4. Step 4: Simplify right side
    10,867.78x = 92,265,004.41
  5. Step 5: Solve for x
    x = 92,265,004.41/10,867.78
  6. Step 6: Final answer
    x = 8,489.77

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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.