Home / 18,961.37-26,167.98-11,003.59

Finding the Fourth Proportional to 18,961.37, 26,167.98 and 11,003.59

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Solution

The fourth proportional to 18,961.37, 26,167.98 and 11,003.59 is: 15,185.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,961.37 : 26,167.98 = 11,003.59 : x
  2. Step 2: Convert to fraction form
    18,961.37/26,167.98 = 11,003.59/x
  3. Step 3: Cross multiply
    18,961.37x = 26,167.98 × 11,003.59
  4. Step 4: Simplify right side
    18,961.37x = 287,941,723.05
  5. Step 5: Solve for x
    x = 287,941,723.05/18,961.37
  6. Step 6: Final answer
    x = 15,185.70

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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.