Home / 8,226.24-12,339.36-2,680

Finding the Fourth Proportional to 8,226.24, 12,339.36 and 2,680

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Solution

The fourth proportional to 8,226.24, 12,339.36 and 2,680 is: 4,020

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,226.24 : 12,339.36 = 2,680 : x
  2. Step 2: Convert to fraction form
    8,226.24/12,339.36 = 2,680/x
  3. Step 3: Cross multiply
    8,226.24x = 12,339.36 × 2,680
  4. Step 4: Simplify right side
    8,226.24x = 33,069,484.80
  5. Step 5: Solve for x
    x = 33,069,484.80/8,226.24
  6. Step 6: Final answer
    x = 4,020

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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.