Home / 18,743.46-25,866-10,785.53

Finding the Fourth Proportional to 18,743.46, 25,866 and 10,785.53

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Solution

The fourth proportional to 18,743.46, 25,866 and 10,785.53 is: 14,884.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,743.46 : 25,866 = 10,785.53 : x
  2. Step 2: Convert to fraction form
    18,743.46/25,866 = 10,785.53/x
  3. Step 3: Cross multiply
    18,743.46x = 25,866 × 10,785.53
  4. Step 4: Simplify right side
    18,743.46x = 278,978,389.65
  5. Step 5: Solve for x
    x = 278,978,389.65/18,743.46
  6. Step 6: Final answer
    x = 14,884.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.