Home / 12,137.24-18,206.65-3,817.58

Finding the Fourth Proportional to 12,137.24, 18,206.65 and 3,817.58

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Solution

The fourth proportional to 12,137.24, 18,206.65 and 3,817.58 is: 5,726.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137.24 : 18,206.65 = 3,817.58 : x
  2. Step 2: Convert to fraction form
    12,137.24/18,206.65 = 3,817.58/x
  3. Step 3: Cross multiply
    12,137.24x = 18,206.65 × 3,817.58
  4. Step 4: Simplify right side
    12,137.24x = 69,505,324.92
  5. Step 5: Solve for x
    x = 69,505,324.92/12,137.24
  6. Step 6: Final answer
    x = 5,726.62

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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.