Home / 19,887.56-27,449.94-11,508.92

Finding the Fourth Proportional to 19,887.56, 27,449.94 and 11,508.92

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Solution

The fourth proportional to 19,887.56, 27,449.94 and 11,508.92 is: 15,885.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,887.56 : 27,449.94 = 11,508.92 : x
  2. Step 2: Convert to fraction form
    19,887.56/27,449.94 = 11,508.92/x
  3. Step 3: Cross multiply
    19,887.56x = 27,449.94 × 11,508.92
  4. Step 4: Simplify right side
    19,887.56x = 315,919,163.46
  5. Step 5: Solve for x
    x = 315,919,163.46/19,887.56
  6. Step 6: Final answer
    x = 15,885.27

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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.