Home / 8,817.80-13,231.92-3,555.34

Finding the Fourth Proportional to 8,817.80, 13,231.92 and 3,555.34

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Solution

The fourth proportional to 8,817.80, 13,231.92 and 3,555.34 is: 5,335.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,817.80 : 13,231.92 = 3,555.34 : x
  2. Step 2: Convert to fraction form
    8,817.80/13,231.92 = 3,555.34/x
  3. Step 3: Cross multiply
    8,817.80x = 13,231.92 × 3,555.34
  4. Step 4: Simplify right side
    8,817.80x = 47,043,974.45
  5. Step 5: Solve for x
    x = 47,043,974.45/8,817.80
  6. Step 6: Final answer
    x = 5,335.11

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1.5x scale

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.