Home / 12,236.81-18,355.41-3,472.20

Finding the Fourth Proportional to 12,236.81, 18,355.41 and 3,472.20

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Solution

The fourth proportional to 12,236.81, 18,355.41 and 3,472.20 is: 5,208.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,236.81 : 18,355.41 = 3,472.20 : x
  2. Step 2: Convert to fraction form
    12,236.81/18,355.41 = 3,472.20/x
  3. Step 3: Cross multiply
    12,236.81x = 18,355.41 × 3,472.20
  4. Step 4: Simplify right side
    12,236.81x = 63,733,654.60
  5. Step 5: Solve for x
    x = 63,733,654.60/12,236.81
  6. Step 6: Final answer
    x = 5,208.36

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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.