Home / 11,079.68-16,622.88-4,155.20

Finding the Fourth Proportional to 11,079.68, 16,622.88 and 4,155.20

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Solution

The fourth proportional to 11,079.68, 16,622.88 and 4,155.20 is: 6,234.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,079.68 : 16,622.88 = 4,155.20 : x
  2. Step 2: Convert to fraction form
    11,079.68/16,622.88 = 4,155.20/x
  3. Step 3: Cross multiply
    11,079.68x = 16,622.88 × 4,155.20
  4. Step 4: Simplify right side
    11,079.68x = 69,071,390.98
  5. Step 5: Solve for x
    x = 69,071,390.98/11,079.68
  6. Step 6: Final answer
    x = 6,234.06

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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.