Home / 18,960.96-26,169.32-11,009.84

Finding the Fourth Proportional to 18,960.96, 26,169.32 and 11,009.84

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Solution

The fourth proportional to 18,960.96, 26,169.32 and 11,009.84 is: 15,195.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,960.96 : 26,169.32 = 11,009.84 : x
  2. Step 2: Convert to fraction form
    18,960.96/26,169.32 = 11,009.84/x
  3. Step 3: Cross multiply
    18,960.96x = 26,169.32 × 11,009.84
  4. Step 4: Simplify right side
    18,960.96x = 288,120,026.11
  5. Step 5: Solve for x
    x = 288,120,026.11/18,960.96
  6. Step 6: Final answer
    x = 15,195.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.