Home / 8,418.48-12,629.52-3,225.84

Finding the Fourth Proportional to 8,418.48, 12,629.52 and 3,225.84

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Solution

The fourth proportional to 8,418.48, 12,629.52 and 3,225.84 is: 4,839.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.48 : 12,629.52 = 3,225.84 : x
  2. Step 2: Convert to fraction form
    8,418.48/12,629.52 = 3,225.84/x
  3. Step 3: Cross multiply
    8,418.48x = 12,629.52 × 3,225.84
  4. Step 4: Simplify right side
    8,418.48x = 40,740,810.80
  5. Step 5: Solve for x
    x = 40,740,810.80/8,418.48
  6. Step 6: Final answer
    x = 4,839.45

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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.