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Finding the Fourth Proportional to 8,808.92, 12,155.45 and 5,272.05

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Solution

The fourth proportional to 8,808.92, 12,155.45 and 5,272.05 is: 7,274.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.92 : 12,155.45 = 5,272.05 : x
  2. Step 2: Convert to fraction form
    8,808.92/12,155.45 = 5,272.05/x
  3. Step 3: Cross multiply
    8,808.92x = 12,155.45 × 5,272.05
  4. Step 4: Simplify right side
    8,808.92x = 64,084,140.17
  5. Step 5: Solve for x
    x = 64,084,140.17/8,808.92
  6. Step 6: Final answer
    x = 7,274.92

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