Home / 12,027.78-18,044.91-4,237.38

Finding the Fourth Proportional to 12,027.78, 18,044.91 and 4,237.38

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Solution

The fourth proportional to 12,027.78, 18,044.91 and 4,237.38 is: 6,357.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,027.78 : 18,044.91 = 4,237.38 : x
  2. Step 2: Convert to fraction form
    12,027.78/18,044.91 = 4,237.38/x
  3. Step 3: Cross multiply
    12,027.78x = 18,044.91 × 4,237.38
  4. Step 4: Simplify right side
    12,027.78x = 76,463,140.74
  5. Step 5: Solve for x
    x = 76,463,140.74/12,027.78
  6. Step 6: Final answer
    x = 6,357.21

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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.