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Finding the Fourth Proportional to 8,199.22, 12,301.36 and 7,328.02

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Solution

The fourth proportional to 8,199.22, 12,301.36 and 7,328.02 is: 10,994.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,199.22 : 12,301.36 = 7,328.02 : x
  2. Step 2: Convert to fraction form
    8,199.22/12,301.36 = 7,328.02/x
  3. Step 3: Cross multiply
    8,199.22x = 12,301.36 × 7,328.02
  4. Step 4: Simplify right side
    8,199.22x = 90,144,612.11
  5. Step 5: Solve for x
    x = 90,144,612.11/8,199.22
  6. Step 6: Final answer
    x = 10,994.29

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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.