Home / 8,160.88-12,236.35-3,478.27

Finding the Fourth Proportional to 8,160.88, 12,236.35 and 3,478.27

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Solution

The fourth proportional to 8,160.88, 12,236.35 and 3,478.27 is: 5,215.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.88 : 12,236.35 = 3,478.27 : x
  2. Step 2: Convert to fraction form
    8,160.88/12,236.35 = 3,478.27/x
  3. Step 3: Cross multiply
    8,160.88x = 12,236.35 × 3,478.27
  4. Step 4: Simplify right side
    8,160.88x = 42,561,329.11
  5. Step 5: Solve for x
    x = 42,561,329.11/8,160.88
  6. Step 6: Final answer
    x = 5,215.29

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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.