Home / 12,201.45-18,326.75-11,856.93

Finding the Fourth Proportional to 12,201.45, 18,326.75 and 11,856.93

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Solution

The fourth proportional to 12,201.45, 18,326.75 and 11,856.93 is: 17,809.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,201.45 : 18,326.75 = 11,856.93 : x
  2. Step 2: Convert to fraction form
    12,201.45/18,326.75 = 11,856.93/x
  3. Step 3: Cross multiply
    12,201.45x = 18,326.75 × 11,856.93
  4. Step 4: Simplify right side
    12,201.45x = 217,298,932.59
  5. Step 5: Solve for x
    x = 217,298,932.59/12,201.45
  6. Step 6: Final answer
    x = 17,809.27

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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.