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Finding the Fourth Proportional to 8,866.47, 12,235.23 and 4,887.57

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Solution

The fourth proportional to 8,866.47, 12,235.23 and 4,887.57 is: 6,744.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,866.47 : 12,235.23 = 4,887.57 : x
  2. Step 2: Convert to fraction form
    8,866.47/12,235.23 = 4,887.57/x
  3. Step 3: Cross multiply
    8,866.47x = 12,235.23 × 4,887.57
  4. Step 4: Simplify right side
    8,866.47x = 59,800,543.09
  5. Step 5: Solve for x
    x = 59,800,543.09/8,866.47
  6. Step 6: Final answer
    x = 6,744.57

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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.