Home / 18,711.20-25,821.44-10,327.68

Finding the Fourth Proportional to 18,711.20, 25,821.44 and 10,327.68

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Solution

The fourth proportional to 18,711.20, 25,821.44 and 10,327.68 is: 14,252.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.20 : 25,821.44 = 10,327.68 : x
  2. Step 2: Convert to fraction form
    18,711.20/25,821.44 = 10,327.68/x
  3. Step 3: Cross multiply
    18,711.20x = 25,821.44 × 10,327.68
  4. Step 4: Simplify right side
    18,711.20x = 266,675,569.46
  5. Step 5: Solve for x
    x = 266,675,569.46/18,711.20
  6. Step 6: Final answer
    x = 14,252.19

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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.