Home / 8,091.68-12,133.44-3,705.40

Finding the Fourth Proportional to 8,091.68, 12,133.44 and 3,705.40

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Solution

The fourth proportional to 8,091.68, 12,133.44 and 3,705.40 is: 5,556.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,091.68 : 12,133.44 = 3,705.40 : x
  2. Step 2: Convert to fraction form
    8,091.68/12,133.44 = 3,705.40/x
  3. Step 3: Cross multiply
    8,091.68x = 12,133.44 × 3,705.40
  4. Step 4: Simplify right side
    8,091.68x = 44,959,248.58
  5. Step 5: Solve for x
    x = 44,959,248.58/8,091.68
  6. Step 6: Final answer
    x = 5,556.23

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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.