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Finding the Fourth Proportional to 8,577.04, 12,865.56 and 2,421.04

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Solution

The fourth proportional to 8,577.04, 12,865.56 and 2,421.04 is: 3,631.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,577.04 : 12,865.56 = 2,421.04 : x
  2. Step 2: Convert to fraction form
    8,577.04/12,865.56 = 2,421.04/x
  3. Step 3: Cross multiply
    8,577.04x = 12,865.56 × 2,421.04
  4. Step 4: Simplify right side
    8,577.04x = 31,148,035.38
  5. Step 5: Solve for x
    x = 31,148,035.38/8,577.04
  6. Step 6: Final answer
    x = 3,631.56

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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.