Home / 8,809.06-13,217.90-3,878.08

Finding the Fourth Proportional to 8,809.06, 13,217.90 and 3,878.08

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Solution

The fourth proportional to 8,809.06, 13,217.90 and 3,878.08 is: 5,819.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.06 : 13,217.90 = 3,878.08 : x
  2. Step 2: Convert to fraction form
    8,809.06/13,217.90 = 3,878.08/x
  3. Step 3: Cross multiply
    8,809.06x = 13,217.90 × 3,878.08
  4. Step 4: Simplify right side
    8,809.06x = 51,260,073.63
  5. Step 5: Solve for x
    x = 51,260,073.63/8,809.06
  6. Step 6: Final answer
    x = 5,819.02

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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.