Home / 12,228.66-18,342.68-3,908.54

Finding the Fourth Proportional to 12,228.66, 18,342.68 and 3,908.54

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Solution

The fourth proportional to 12,228.66, 18,342.68 and 3,908.54 is: 5,862.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,228.66 : 18,342.68 = 3,908.54 : x
  2. Step 2: Convert to fraction form
    12,228.66/18,342.68 = 3,908.54/x
  3. Step 3: Cross multiply
    12,228.66x = 18,342.68 × 3,908.54
  4. Step 4: Simplify right side
    12,228.66x = 71,692,987.23
  5. Step 5: Solve for x
    x = 71,692,987.23/12,228.66
  6. Step 6: Final answer
    x = 5,862.70

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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.