Home / 7,418.18-11,129.67-2,488.26

Finding the Fourth Proportional to 7,418.18, 11,129.67 and 2,488.26

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Solution

The fourth proportional to 7,418.18, 11,129.67 and 2,488.26 is: 3,733.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.18 : 11,129.67 = 2,488.26 : x
  2. Step 2: Convert to fraction form
    7,418.18/11,129.67 = 2,488.26/x
  3. Step 3: Cross multiply
    7,418.18x = 11,129.67 × 2,488.26
  4. Step 4: Simplify right side
    7,418.18x = 27,693,512.67
  5. Step 5: Solve for x
    x = 27,693,512.67/7,418.18
  6. Step 6: Final answer
    x = 3,733.20

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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.