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Finding the Fourth Proportional to 8,817.78, 13,229.01 and 2,973.54

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Solution

The fourth proportional to 8,817.78, 13,229.01 and 2,973.54 is: 4,461.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,817.78 : 13,229.01 = 2,973.54 : x
  2. Step 2: Convert to fraction form
    8,817.78/13,229.01 = 2,973.54/x
  3. Step 3: Cross multiply
    8,817.78x = 13,229.01 × 2,973.54
  4. Step 4: Simplify right side
    8,817.78x = 39,336,990.40
  5. Step 5: Solve for x
    x = 39,336,990.40/8,817.78
  6. Step 6: Final answer
    x = 4,461.10

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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.