Home / 18,022.74-27,034.10-13,123.55

Finding the Fourth Proportional to 18,022.74, 27,034.10 and 13,123.55

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Solution

The fourth proportional to 18,022.74, 27,034.10 and 13,123.55 is: 19,685.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,022.74 : 27,034.10 = 13,123.55 : x
  2. Step 2: Convert to fraction form
    18,022.74/27,034.10 = 13,123.55/x
  3. Step 3: Cross multiply
    18,022.74x = 27,034.10 × 13,123.55
  4. Step 4: Simplify right side
    18,022.74x = 354,783,162.27
  5. Step 5: Solve for x
    x = 354,783,162.27/18,022.74
  6. Step 6: Final answer
    x = 19,685.31

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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.