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Finding the Fourth Proportional to 8,874.32, 13,311.48 and 3,030.98

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Solution

The fourth proportional to 8,874.32, 13,311.48 and 3,030.98 is: 4,546.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,874.32 : 13,311.48 = 3,030.98 : x
  2. Step 2: Convert to fraction form
    8,874.32/13,311.48 = 3,030.98/x
  3. Step 3: Cross multiply
    8,874.32x = 13,311.48 × 3,030.98
  4. Step 4: Simplify right side
    8,874.32x = 40,346,829.65
  5. Step 5: Solve for x
    x = 40,346,829.65/8,874.32
  6. Step 6: Final answer
    x = 4,546.47

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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.