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Finding the Fourth Proportional to 8,889.86, 13,335.96 and 3,046.88

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Solution

The fourth proportional to 8,889.86, 13,335.96 and 3,046.88 is: 4,570.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.86 : 13,335.96 = 3,046.88 : x
  2. Step 2: Convert to fraction form
    8,889.86/13,335.96 = 3,046.88/x
  3. Step 3: Cross multiply
    8,889.86x = 13,335.96 × 3,046.88
  4. Step 4: Simplify right side
    8,889.86x = 40,633,069.80
  5. Step 5: Solve for x
    x = 40,633,069.80/8,889.86
  6. Step 6: Final answer
    x = 4,570.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.