Home / 7,755.17-11,622.29-4,239.90

Finding the Fourth Proportional to 7,755.17, 11,622.29 and 4,239.90

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Solution

The fourth proportional to 7,755.17, 11,622.29 and 4,239.90 is: 6,354.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,755.17 : 11,622.29 = 4,239.90 : x
  2. Step 2: Convert to fraction form
    7,755.17/11,622.29 = 4,239.90/x
  3. Step 3: Cross multiply
    7,755.17x = 11,622.29 × 4,239.90
  4. Step 4: Simplify right side
    7,755.17x = 49,277,326.17
  5. Step 5: Solve for x
    x = 49,277,326.17/7,755.17
  6. Step 6: Final answer
    x = 6,354.13

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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.