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Finding the Fourth Proportional to 8,821, 12,173.34 and 5,095

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Solution

The fourth proportional to 8,821, 12,173.34 and 5,095 is: 7,031.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821 : 12,173.34 = 5,095 : x
  2. Step 2: Convert to fraction form
    8,821/12,173.34 = 5,095/x
  3. Step 3: Cross multiply
    8,821x = 12,173.34 × 5,095
  4. Step 4: Simplify right side
    8,821x = 62,023,167.30
  5. Step 5: Solve for x
    x = 62,023,167.30/8,821
  6. Step 6: Final answer
    x = 7,031.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.