Home / 12,195.03-18,290.57-3,430.11

Finding the Fourth Proportional to 12,195.03, 18,290.57 and 3,430.11

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Solution

The fourth proportional to 12,195.03, 18,290.57 and 3,430.11 is: 5,144.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.03 : 18,290.57 = 3,430.11 : x
  2. Step 2: Convert to fraction form
    12,195.03/18,290.57 = 3,430.11/x
  3. Step 3: Cross multiply
    12,195.03x = 18,290.57 × 3,430.11
  4. Step 4: Simplify right side
    12,195.03x = 62,738,649.91
  5. Step 5: Solve for x
    x = 62,738,649.91/12,195.03
  6. Step 6: Final answer
    x = 5,144.61

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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.