Home / 12,021.38-18,032.33-4,123.86

Finding the Fourth Proportional to 12,021.38, 18,032.33 and 4,123.86

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Solution

The fourth proportional to 12,021.38, 18,032.33 and 4,123.86 is: 6,185.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,021.38 : 18,032.33 = 4,123.86 : x
  2. Step 2: Convert to fraction form
    12,021.38/18,032.33 = 4,123.86/x
  3. Step 3: Cross multiply
    12,021.38x = 18,032.33 × 4,123.86
  4. Step 4: Simplify right side
    12,021.38x = 74,362,828.22
  5. Step 5: Solve for x
    x = 74,362,828.22/12,021.38
  6. Step 6: Final answer
    x = 6,185.88

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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.