Home / 18,578.72-27,877.66-12,343.04

Finding the Fourth Proportional to 18,578.72, 27,877.66 and 12,343.04

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Solution

The fourth proportional to 18,578.72, 27,877.66 and 12,343.04 is: 18,520.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,578.72 : 27,877.66 = 12,343.04 : x
  2. Step 2: Convert to fraction form
    18,578.72/27,877.66 = 12,343.04/x
  3. Step 3: Cross multiply
    18,578.72x = 27,877.66 × 12,343.04
  4. Step 4: Simplify right side
    18,578.72x = 344,095,072.49
  5. Step 5: Solve for x
    x = 344,095,072.49/18,578.72
  6. Step 6: Final answer
    x = 18,520.92

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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.