Home / 12,142.26-18,215.76-4,350.06

Finding the Fourth Proportional to 12,142.26, 18,215.76 and 4,350.06

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Solution

The fourth proportional to 12,142.26, 18,215.76 and 4,350.06 is: 6,525.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,142.26 : 18,215.76 = 4,350.06 : x
  2. Step 2: Convert to fraction form
    12,142.26/18,215.76 = 4,350.06/x
  3. Step 3: Cross multiply
    12,142.26x = 18,215.76 × 4,350.06
  4. Step 4: Simplify right side
    12,142.26x = 79,239,648.95
  5. Step 5: Solve for x
    x = 79,239,648.95/12,142.26
  6. Step 6: Final answer
    x = 6,525.94

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1.5x scale

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.