Home / 8,225.24-12,339.66-3,840.30

Finding the Fourth Proportional to 8,225.24, 12,339.66 and 3,840.30

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Solution

The fourth proportional to 8,225.24, 12,339.66 and 3,840.30 is: 5,761.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,225.24 : 12,339.66 = 3,840.30 : x
  2. Step 2: Convert to fraction form
    8,225.24/12,339.66 = 3,840.30/x
  3. Step 3: Cross multiply
    8,225.24x = 12,339.66 × 3,840.30
  4. Step 4: Simplify right side
    8,225.24x = 47,387,996.30
  5. Step 5: Solve for x
    x = 47,387,996.30/8,225.24
  6. Step 6: Final answer
    x = 5,761.29

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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.