Home / 12,208.38-18,312.44-2,974.38

Finding the Fourth Proportional to 12,208.38, 18,312.44 and 2,974.38

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Solution

The fourth proportional to 12,208.38, 18,312.44 and 2,974.38 is: 4,461.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.38 : 18,312.44 = 2,974.38 : x
  2. Step 2: Convert to fraction form
    12,208.38/18,312.44 = 2,974.38/x
  3. Step 3: Cross multiply
    12,208.38x = 18,312.44 × 2,974.38
  4. Step 4: Simplify right side
    12,208.38x = 54,468,140.42
  5. Step 5: Solve for x
    x = 54,468,140.42/12,208.38
  6. Step 6: Final answer
    x = 4,461.54

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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.