Home / 18,960.88-26,161.56-11,507.44

Finding the Fourth Proportional to 18,960.88, 26,161.56 and 11,507.44

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Solution

The fourth proportional to 18,960.88, 26,161.56 and 11,507.44 is: 15,877.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,960.88 : 26,161.56 = 11,507.44 : x
  2. Step 2: Convert to fraction form
    18,960.88/26,161.56 = 11,507.44/x
  3. Step 3: Cross multiply
    18,960.88x = 26,161.56 × 11,507.44
  4. Step 4: Simplify right side
    18,960.88x = 301,052,582.01
  5. Step 5: Solve for x
    x = 301,052,582.01/18,960.88
  6. Step 6: Final answer
    x = 15,877.56

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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.