Home / 12,301.96-18,438.04-5,179.88

Finding the Fourth Proportional to 12,301.96, 18,438.04 and 5,179.88

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Solution

The fourth proportional to 12,301.96, 18,438.04 and 5,179.88 is: 7,763.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,301.96 : 18,438.04 = 5,179.88 : x
  2. Step 2: Convert to fraction form
    12,301.96/18,438.04 = 5,179.88/x
  3. Step 3: Cross multiply
    12,301.96x = 18,438.04 × 5,179.88
  4. Step 4: Simplify right side
    12,301.96x = 95,506,834.64
  5. Step 5: Solve for x
    x = 95,506,834.64/12,301.96
  6. Step 6: Final answer
    x = 7,763.55

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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.