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Finding the Fourth Proportional to 8,855.47, 12,220.52 and 4,876.59

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Solution

The fourth proportional to 8,855.47, 12,220.52 and 4,876.59 is: 6,729.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,855.47 : 12,220.52 = 4,876.59 : x
  2. Step 2: Convert to fraction form
    8,855.47/12,220.52 = 4,876.59/x
  3. Step 3: Cross multiply
    8,855.47x = 12,220.52 × 4,876.59
  4. Step 4: Simplify right side
    8,855.47x = 59,594,465.63
  5. Step 5: Solve for x
    x = 59,594,465.63/8,855.47
  6. Step 6: Final answer
    x = 6,729.68

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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.