Home / 18,211.12-27,323.19-7,125.76

Finding the Fourth Proportional to 18,211.12, 27,323.19 and 7,125.76

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Solution

The fourth proportional to 18,211.12, 27,323.19 and 7,125.76 is: 10,691.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.12 : 27,323.19 = 7,125.76 : x
  2. Step 2: Convert to fraction form
    18,211.12/27,323.19 = 7,125.76/x
  3. Step 3: Cross multiply
    18,211.12x = 27,323.19 × 7,125.76
  4. Step 4: Simplify right side
    18,211.12x = 194,698,494.37
  5. Step 5: Solve for x
    x = 194,698,494.37/18,211.12
  6. Step 6: Final answer
    x = 10,691.19

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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.