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Finding the Fourth Proportional to 8,808.65, 13,211.51 and 2,885.42

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Solution

The fourth proportional to 8,808.65, 13,211.51 and 2,885.42 is: 4,327.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.65 : 13,211.51 = 2,885.42 : x
  2. Step 2: Convert to fraction form
    8,808.65/13,211.51 = 2,885.42/x
  3. Step 3: Cross multiply
    8,808.65x = 13,211.51 × 2,885.42
  4. Step 4: Simplify right side
    8,808.65x = 38,120,773.79
  5. Step 5: Solve for x
    x = 38,120,773.79/8,808.65
  6. Step 6: Final answer
    x = 4,327.65

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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.