Home / 18,111.92-27,170.76-7,723.76

Finding the Fourth Proportional to 18,111.92, 27,170.76 and 7,723.76

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Solution

The fourth proportional to 18,111.92, 27,170.76 and 7,723.76 is: 11,586.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,111.92 : 27,170.76 = 7,723.76 : x
  2. Step 2: Convert to fraction form
    18,111.92/27,170.76 = 7,723.76/x
  3. Step 3: Cross multiply
    18,111.92x = 27,170.76 × 7,723.76
  4. Step 4: Simplify right side
    18,111.92x = 209,860,429.26
  5. Step 5: Solve for x
    x = 209,860,429.26/18,111.92
  6. Step 6: Final answer
    x = 11,586.87

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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.