Home / 18,711.86-25,821.68-10,328.18

Finding the Fourth Proportional to 18,711.86, 25,821.68 and 10,328.18

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Solution

The fourth proportional to 18,711.86, 25,821.68 and 10,328.18 is: 14,252.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.86 : 25,821.68 = 10,328.18 : x
  2. Step 2: Convert to fraction form
    18,711.86/25,821.68 = 10,328.18/x
  3. Step 3: Cross multiply
    18,711.86x = 25,821.68 × 10,328.18
  4. Step 4: Simplify right side
    18,711.86x = 266,690,958.94
  5. Step 5: Solve for x
    x = 266,690,958.94/18,711.86
  6. Step 6: Final answer
    x = 14,252.51

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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.