Home / 8,315.88-12,471.22-2,767.92

Finding the Fourth Proportional to 8,315.88, 12,471.22 and 2,767.92

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Solution

The fourth proportional to 8,315.88, 12,471.22 and 2,767.92 is: 4,151.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.88 : 12,471.22 = 2,767.92 : x
  2. Step 2: Convert to fraction form
    8,315.88/12,471.22 = 2,767.92/x
  3. Step 3: Cross multiply
    8,315.88x = 12,471.22 × 2,767.92
  4. Step 4: Simplify right side
    8,315.88x = 34,519,357.10
  5. Step 5: Solve for x
    x = 34,519,357.10/8,315.88
  6. Step 6: Final answer
    x = 4,151.02

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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.