Home / 10,949.58-16,421.13-3,929.04

Finding the Fourth Proportional to 10,949.58, 16,421.13 and 3,929.04

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Solution

The fourth proportional to 10,949.58, 16,421.13 and 3,929.04 is: 5,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,949.58 : 16,421.13 = 3,929.04 : x
  2. Step 2: Convert to fraction form
    10,949.58/16,421.13 = 3,929.04/x
  3. Step 3: Cross multiply
    10,949.58x = 16,421.13 × 3,929.04
  4. Step 4: Simplify right side
    10,949.58x = 64,519,276.62
  5. Step 5: Solve for x
    x = 64,519,276.62/10,949.58
  6. Step 6: Final answer
    x = 5,892.40

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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.