Home / 10,917.98-16,379.00-3,521.66

Finding the Fourth Proportional to 10,917.98, 16,379.00 and 3,521.66

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Solution

The fourth proportional to 10,917.98, 16,379.00 and 3,521.66 is: 5,283.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.98 : 16,379.00 = 3,521.66 : x
  2. Step 2: Convert to fraction form
    10,917.98/16,379.00 = 3,521.66/x
  3. Step 3: Cross multiply
    10,917.98x = 16,379.00 × 3,521.66
  4. Step 4: Simplify right side
    10,917.98x = 57,681,251.53
  5. Step 5: Solve for x
    x = 57,681,251.53/10,917.98
  6. Step 6: Final answer
    x = 5,283.15

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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.