Home / 18,845.46-28,274.67-5,700.78

Finding the Fourth Proportional to 18,845.46, 28,274.67 and 5,700.78

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Solution

The fourth proportional to 18,845.46, 28,274.67 and 5,700.78 is: 8,553.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,845.46 : 28,274.67 = 5,700.78 : x
  2. Step 2: Convert to fraction form
    18,845.46/28,274.67 = 5,700.78/x
  3. Step 3: Cross multiply
    18,845.46x = 28,274.67 × 5,700.78
  4. Step 4: Simplify right side
    18,845.46x = 161,187,673.24
  5. Step 5: Solve for x
    x = 161,187,673.24/18,845.46
  6. Step 6: Final answer
    x = 8,553.13

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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.