Home / 8,123.96-12,184.50-2,929.88

Finding the Fourth Proportional to 8,123.96, 12,184.50 and 2,929.88

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Solution

The fourth proportional to 8,123.96, 12,184.50 and 2,929.88 is: 4,394.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.96 : 12,184.50 = 2,929.88 : x
  2. Step 2: Convert to fraction form
    8,123.96/12,184.50 = 2,929.88/x
  3. Step 3: Cross multiply
    8,123.96x = 12,184.50 × 2,929.88
  4. Step 4: Simplify right side
    8,123.96x = 35,699,122.86
  5. Step 5: Solve for x
    x = 35,699,122.86/8,123.96
  6. Step 6: Final answer
    x = 4,394.30

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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.