Home / 10,879.53-16,309.86-6,487.75

Finding the Fourth Proportional to 10,879.53, 16,309.86 and 6,487.75

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Solution

The fourth proportional to 10,879.53, 16,309.86 and 6,487.75 is: 9,726.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,879.53 : 16,309.86 = 6,487.75 : x
  2. Step 2: Convert to fraction form
    10,879.53/16,309.86 = 6,487.75/x
  3. Step 3: Cross multiply
    10,879.53x = 16,309.86 × 6,487.75
  4. Step 4: Simplify right side
    10,879.53x = 105,814,294.22
  5. Step 5: Solve for x
    x = 105,814,294.22/10,879.53
  6. Step 6: Final answer
    x = 9,726.00

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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.