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Finding the Fourth Proportional to 8,788.48, 12,122.64 and 5,432.32

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Solution

The fourth proportional to 8,788.48, 12,122.64 and 5,432.32 is: 7,493.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,788.48 : 12,122.64 = 5,432.32 : x
  2. Step 2: Convert to fraction form
    8,788.48/12,122.64 = 5,432.32/x
  3. Step 3: Cross multiply
    8,788.48x = 12,122.64 × 5,432.32
  4. Step 4: Simplify right side
    8,788.48x = 65,854,059.72
  5. Step 5: Solve for x
    x = 65,854,059.72/8,788.48
  6. Step 6: Final answer
    x = 7,493.23

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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.