Home / 18,423.57-27,638.10-5,939.49

Finding the Fourth Proportional to 18,423.57, 27,638.10 and 5,939.49

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Solution

The fourth proportional to 18,423.57, 27,638.10 and 5,939.49 is: 8,910.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,423.57 : 27,638.10 = 5,939.49 : x
  2. Step 2: Convert to fraction form
    18,423.57/27,638.10 = 5,939.49/x
  3. Step 3: Cross multiply
    18,423.57x = 27,638.10 × 5,939.49
  4. Step 4: Simplify right side
    18,423.57x = 164,156,218.57
  5. Step 5: Solve for x
    x = 164,156,218.57/18,423.57
  6. Step 6: Final answer
    x = 8,910.12

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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.