Home / 11,768.74-16,240.85-6,463.90

Finding the Fourth Proportional to 11,768.74, 16,240.85 and 6,463.90

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Solution

The fourth proportional to 11,768.74, 16,240.85 and 6,463.90 is: 8,920.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,768.74 : 16,240.85 = 6,463.90 : x
  2. Step 2: Convert to fraction form
    11,768.74/16,240.85 = 6,463.90/x
  3. Step 3: Cross multiply
    11,768.74x = 16,240.85 × 6,463.90
  4. Step 4: Simplify right side
    11,768.74x = 104,979,278.90
  5. Step 5: Solve for x
    x = 104,979,278.90/11,768.74
  6. Step 6: Final answer
    x = 8,920.18

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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.