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Finding the Fourth Proportional to 9,042.85, 12,479.03 and 5,063.98

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Solution

The fourth proportional to 9,042.85, 12,479.03 and 5,063.98 is: 6,988.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,042.85 : 12,479.03 = 5,063.98 : x
  2. Step 2: Convert to fraction form
    9,042.85/12,479.03 = 5,063.98/x
  3. Step 3: Cross multiply
    9,042.85x = 12,479.03 × 5,063.98
  4. Step 4: Simplify right side
    9,042.85x = 63,193,539.80
  5. Step 5: Solve for x
    x = 63,193,539.80/9,042.85
  6. Step 6: Final answer
    x = 6,988.23

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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.