Home / 8,088.66-12,134.14-3,405.75

Finding the Fourth Proportional to 8,088.66, 12,134.14 and 3,405.75

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Solution

The fourth proportional to 8,088.66, 12,134.14 and 3,405.75 is: 5,109.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,088.66 : 12,134.14 = 3,405.75 : x
  2. Step 2: Convert to fraction form
    8,088.66/12,134.14 = 3,405.75/x
  3. Step 3: Cross multiply
    8,088.66x = 12,134.14 × 3,405.75
  4. Step 4: Simplify right side
    8,088.66x = 41,325,793.29
  5. Step 5: Solve for x
    x = 41,325,793.29/8,088.66
  6. Step 6: Final answer
    x = 5,109.10

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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.