Home / 18,576.49-27,874.29-12,340.81

Finding the Fourth Proportional to 18,576.49, 27,874.29 and 12,340.81

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Solution

The fourth proportional to 18,576.49, 27,874.29 and 12,340.81 is: 18,517.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,576.49 : 27,874.29 = 12,340.81 : x
  2. Step 2: Convert to fraction form
    18,576.49/27,874.29 = 12,340.81/x
  3. Step 3: Cross multiply
    18,576.49x = 27,874.29 × 12,340.81
  4. Step 4: Simplify right side
    18,576.49x = 343,991,316.77
  5. Step 5: Solve for x
    x = 343,991,316.77/18,576.49
  6. Step 6: Final answer
    x = 18,517.56

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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.