Home / 8,360.32-12,541.56-2,811.28

Finding the Fourth Proportional to 8,360.32, 12,541.56 and 2,811.28

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Solution

The fourth proportional to 8,360.32, 12,541.56 and 2,811.28 is: 4,217.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,360.32 : 12,541.56 = 2,811.28 : x
  2. Step 2: Convert to fraction form
    8,360.32/12,541.56 = 2,811.28/x
  3. Step 3: Cross multiply
    8,360.32x = 12,541.56 × 2,811.28
  4. Step 4: Simplify right side
    8,360.32x = 35,257,836.80
  5. Step 5: Solve for x
    x = 35,257,836.80/8,360.32
  6. Step 6: Final answer
    x = 4,217.28

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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.