Home / 18,711.68-25,821.96-10,328

Finding the Fourth Proportional to 18,711.68, 25,821.96 and 10,328

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Solution

The fourth proportional to 18,711.68, 25,821.96 and 10,328 is: 14,252.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.68 : 25,821.96 = 10,328 : x
  2. Step 2: Convert to fraction form
    18,711.68/25,821.96 = 10,328/x
  3. Step 3: Cross multiply
    18,711.68x = 25,821.96 × 10,328
  4. Step 4: Simplify right side
    18,711.68x = 266,689,202.88
  5. Step 5: Solve for x
    x = 266,689,202.88/18,711.68
  6. Step 6: Final answer
    x = 14,252.55

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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.