Home / 8,968.50-13,440.65-3,418.83

Finding the Fourth Proportional to 8,968.50, 13,440.65 and 3,418.83

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Solution

The fourth proportional to 8,968.50, 13,440.65 and 3,418.83 is: 5,123.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.50 : 13,440.65 = 3,418.83 : x
  2. Step 2: Convert to fraction form
    8,968.50/13,440.65 = 3,418.83/x
  3. Step 3: Cross multiply
    8,968.50x = 13,440.65 × 3,418.83
  4. Step 4: Simplify right side
    8,968.50x = 45,951,280.35
  5. Step 5: Solve for x
    x = 45,951,280.35/8,968.50
  6. Step 6: Final answer
    x = 5,123.63

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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.