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Finding the Fourth Proportional to 8,976.35, 12,387.35 and 4,998.23

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Solution

The fourth proportional to 8,976.35, 12,387.35 and 4,998.23 is: 6,897.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.35 : 12,387.35 = 4,998.23 : x
  2. Step 2: Convert to fraction form
    8,976.35/12,387.35 = 4,998.23/x
  3. Step 3: Cross multiply
    8,976.35x = 12,387.35 × 4,998.23
  4. Step 4: Simplify right side
    8,976.35x = 61,914,737.46
  5. Step 5: Solve for x
    x = 61,914,737.46/8,976.35
  6. Step 6: Final answer
    x = 6,897.54

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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.