Home / 11,215.92-16,823.88-3,821.16

Finding the Fourth Proportional to 11,215.92, 16,823.88 and 3,821.16

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Solution

The fourth proportional to 11,215.92, 16,823.88 and 3,821.16 is: 5,731.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.92 : 16,823.88 = 3,821.16 : x
  2. Step 2: Convert to fraction form
    11,215.92/16,823.88 = 3,821.16/x
  3. Step 3: Cross multiply
    11,215.92x = 16,823.88 × 3,821.16
  4. Step 4: Simplify right side
    11,215.92x = 64,286,737.30
  5. Step 5: Solve for x
    x = 64,286,737.30/11,215.92
  6. Step 6: Final answer
    x = 5,731.74

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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.