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Finding the Fourth Proportional to 8,518.62, 12,779.28 and 2,673.84

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Solution

The fourth proportional to 8,518.62, 12,779.28 and 2,673.84 is: 4,011.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518.62 : 12,779.28 = 2,673.84 : x
  2. Step 2: Convert to fraction form
    8,518.62/12,779.28 = 2,673.84/x
  3. Step 3: Cross multiply
    8,518.62x = 12,779.28 × 2,673.84
  4. Step 4: Simplify right side
    8,518.62x = 34,169,750.04
  5. Step 5: Solve for x
    x = 34,169,750.04/8,518.62
  6. Step 6: Final answer
    x = 4,011.18

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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.