Home / 18,012.38-27,015.50-4,861.68

Finding the Fourth Proportional to 18,012.38, 27,015.50 and 4,861.68

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Solution

The fourth proportional to 18,012.38, 27,015.50 and 4,861.68 is: 7,291.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,012.38 : 27,015.50 = 4,861.68 : x
  2. Step 2: Convert to fraction form
    18,012.38/27,015.50 = 4,861.68/x
  3. Step 3: Cross multiply
    18,012.38x = 27,015.50 × 4,861.68
  4. Step 4: Simplify right side
    18,012.38x = 131,340,716.04
  5. Step 5: Solve for x
    x = 131,340,716.04/18,012.38
  6. Step 6: Final answer
    x = 7,291.69

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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.