Home / 10,881.18-16,321.05-6,484.86

Finding the Fourth Proportional to 10,881.18, 16,321.05 and 6,484.86

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Solution

The fourth proportional to 10,881.18, 16,321.05 and 6,484.86 is: 9,726.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,881.18 : 16,321.05 = 6,484.86 : x
  2. Step 2: Convert to fraction form
    10,881.18/16,321.05 = 6,484.86/x
  3. Step 3: Cross multiply
    10,881.18x = 16,321.05 × 6,484.86
  4. Step 4: Simplify right side
    10,881.18x = 105,839,724.30
  5. Step 5: Solve for x
    x = 105,839,724.30/10,881.18
  6. Step 6: Final answer
    x = 9,726.86

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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.