Home / 18,491.18-25,517.85-10,107.68

Finding the Fourth Proportional to 18,491.18, 25,517.85 and 10,107.68

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Solution

The fourth proportional to 18,491.18, 25,517.85 and 10,107.68 is: 13,948.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,491.18 : 25,517.85 = 10,107.68 : x
  2. Step 2: Convert to fraction form
    18,491.18/25,517.85 = 10,107.68/x
  3. Step 3: Cross multiply
    18,491.18x = 25,517.85 × 10,107.68
  4. Step 4: Simplify right side
    18,491.18x = 257,926,262.09
  5. Step 5: Solve for x
    x = 257,926,262.09/18,491.18
  6. Step 6: Final answer
    x = 13,948.61

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1.5x scale

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.