Home / 8,229.12-12,339.84-4,767.36

Finding the Fourth Proportional to 8,229.12, 12,339.84 and 4,767.36

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Solution

The fourth proportional to 8,229.12, 12,339.84 and 4,767.36 is: 7,148.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,229.12 : 12,339.84 = 4,767.36 : x
  2. Step 2: Convert to fraction form
    8,229.12/12,339.84 = 4,767.36/x
  3. Step 3: Cross multiply
    8,229.12x = 12,339.84 × 4,767.36
  4. Step 4: Simplify right side
    8,229.12x = 58,828,459.62
  5. Step 5: Solve for x
    x = 58,828,459.62/8,229.12
  6. Step 6: Final answer
    x = 7,148.82

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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.