Home / 10,821.11-16,257.68-10,223.70

Finding the Fourth Proportional to 10,821.11, 16,257.68 and 10,223.70

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Solution

The fourth proportional to 10,821.11, 16,257.68 and 10,223.70 is: 15,360.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.11 : 16,257.68 = 10,223.70 : x
  2. Step 2: Convert to fraction form
    10,821.11/16,257.68 = 10,223.70/x
  3. Step 3: Cross multiply
    10,821.11x = 16,257.68 × 10,223.70
  4. Step 4: Simplify right side
    10,821.11x = 166,213,660.72
  5. Step 5: Solve for x
    x = 166,213,660.72/10,821.11
  6. Step 6: Final answer
    x = 15,360.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.