Home / 8,972.10-13,481.91-4,815.18

Finding the Fourth Proportional to 8,972.10, 13,481.91 and 4,815.18

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Solution

The fourth proportional to 8,972.10, 13,481.91 and 4,815.18 is: 7,235.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.10 : 13,481.91 = 4,815.18 : x
  2. Step 2: Convert to fraction form
    8,972.10/13,481.91 = 4,815.18/x
  3. Step 3: Cross multiply
    8,972.10x = 13,481.91 × 4,815.18
  4. Step 4: Simplify right side
    8,972.10x = 64,917,823.39
  5. Step 5: Solve for x
    x = 64,917,823.39/8,972.10
  6. Step 6: Final answer
    x = 7,235.52

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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.