Home / 12,132.88-18,191.26-4,738.04

Finding the Fourth Proportional to 12,132.88, 18,191.26 and 4,738.04

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Solution

The fourth proportional to 12,132.88, 18,191.26 and 4,738.04 is: 7,103.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.88 : 18,191.26 = 4,738.04 : x
  2. Step 2: Convert to fraction form
    12,132.88/18,191.26 = 4,738.04/x
  3. Step 3: Cross multiply
    12,132.88x = 18,191.26 × 4,738.04
  4. Step 4: Simplify right side
    12,132.88x = 86,190,917.53
  5. Step 5: Solve for x
    x = 86,190,917.53/12,132.88
  6. Step 6: Final answer
    x = 7,103.91

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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.