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Finding the Fourth Proportional to 8,809.59, 13,214.48 and 2,966.21

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Solution

The fourth proportional to 8,809.59, 13,214.48 and 2,966.21 is: 4,449.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.59 : 13,214.48 = 2,966.21 : x
  2. Step 2: Convert to fraction form
    8,809.59/13,214.48 = 2,966.21/x
  3. Step 3: Cross multiply
    8,809.59x = 13,214.48 × 2,966.21
  4. Step 4: Simplify right side
    8,809.59x = 39,196,841.82
  5. Step 5: Solve for x
    x = 39,196,841.82/8,809.59
  6. Step 6: Final answer
    x = 4,449.34

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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.