Home / 8,116.28-12,176.40-2,272.80

Finding the Fourth Proportional to 8,116.28, 12,176.40 and 2,272.80

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Solution

The fourth proportional to 8,116.28, 12,176.40 and 2,272.80 is: 3,409.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,116.28 : 12,176.40 = 2,272.80 : x
  2. Step 2: Convert to fraction form
    8,116.28/12,176.40 = 2,272.80/x
  3. Step 3: Cross multiply
    8,116.28x = 12,176.40 × 2,272.80
  4. Step 4: Simplify right side
    8,116.28x = 27,674,521.92
  5. Step 5: Solve for x
    x = 27,674,521.92/8,116.28
  6. Step 6: Final answer
    x = 3,409.75

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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.