Home / 12,488.31-18,738.54-5,906.66

Finding the Fourth Proportional to 12,488.31, 18,738.54 and 5,906.66

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Solution

The fourth proportional to 12,488.31, 18,738.54 and 5,906.66 is: 8,862.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,488.31 : 18,738.54 = 5,906.66 : x
  2. Step 2: Convert to fraction form
    12,488.31/18,738.54 = 5,906.66/x
  3. Step 3: Cross multiply
    12,488.31x = 18,738.54 × 5,906.66
  4. Step 4: Simplify right side
    12,488.31x = 110,682,090.98
  5. Step 5: Solve for x
    x = 110,682,090.98/12,488.31
  6. Step 6: Final answer
    x = 8,862.86

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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.