Home / 10,917.62-16,379.67-5,077.70

Finding the Fourth Proportional to 10,917.62, 16,379.67 and 5,077.70

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Solution

The fourth proportional to 10,917.62, 16,379.67 and 5,077.70 is: 7,618.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.62 : 16,379.67 = 5,077.70 : x
  2. Step 2: Convert to fraction form
    10,917.62/16,379.67 = 5,077.70/x
  3. Step 3: Cross multiply
    10,917.62x = 16,379.67 × 5,077.70
  4. Step 4: Simplify right side
    10,917.62x = 83,171,050.36
  5. Step 5: Solve for x
    x = 83,171,050.36/10,917.62
  6. Step 6: Final answer
    x = 7,618.06

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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.