Home / 8,212.28-12,318.39-2,056.28

Finding the Fourth Proportional to 8,212.28, 12,318.39 and 2,056.28

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Solution

The fourth proportional to 8,212.28, 12,318.39 and 2,056.28 is: 3,084.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,212.28 : 12,318.39 = 2,056.28 : x
  2. Step 2: Convert to fraction form
    8,212.28/12,318.39 = 2,056.28/x
  3. Step 3: Cross multiply
    8,212.28x = 12,318.39 × 2,056.28
  4. Step 4: Simplify right side
    8,212.28x = 25,330,058.99
  5. Step 5: Solve for x
    x = 25,330,058.99/8,212.28
  6. Step 6: Final answer
    x = 3,084.41

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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.