Home / 18,149.06-27,213.57-12,225.63

Finding the Fourth Proportional to 18,149.06, 27,213.57 and 12,225.63

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Solution

The fourth proportional to 18,149.06, 27,213.57 and 12,225.63 is: 18,331.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,149.06 : 27,213.57 = 12,225.63 : x
  2. Step 2: Convert to fraction form
    18,149.06/27,213.57 = 12,225.63/x
  3. Step 3: Cross multiply
    18,149.06x = 27,213.57 × 12,225.63
  4. Step 4: Simplify right side
    18,149.06x = 332,703,139.85
  5. Step 5: Solve for x
    x = 332,703,139.85/18,149.06
  6. Step 6: Final answer
    x = 18,331.70

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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.