Home / 11,930-16,463.72-6,625.04

Finding the Fourth Proportional to 11,930, 16,463.72 and 6,625.04

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Solution

The fourth proportional to 11,930, 16,463.72 and 6,625.04 is: 9,142.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,930 : 16,463.72 = 6,625.04 : x
  2. Step 2: Convert to fraction form
    11,930/16,463.72 = 6,625.04/x
  3. Step 3: Cross multiply
    11,930x = 16,463.72 × 6,625.04
  4. Step 4: Simplify right side
    11,930x = 109,072,803.55
  5. Step 5: Solve for x
    x = 109,072,803.55/11,930
  6. Step 6: Final answer
    x = 9,142.73

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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.