Home / 19,861.19-27,408.67-10,908.90

Finding the Fourth Proportional to 19,861.19, 27,408.67 and 10,908.90

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Solution

The fourth proportional to 19,861.19, 27,408.67 and 10,908.90 is: 15,054.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,861.19 : 27,408.67 = 10,908.90 : x
  2. Step 2: Convert to fraction form
    19,861.19/27,408.67 = 10,908.90/x
  3. Step 3: Cross multiply
    19,861.19x = 27,408.67 × 10,908.90
  4. Step 4: Simplify right side
    19,861.19x = 298,998,508.68
  5. Step 5: Solve for x
    x = 298,998,508.68/19,861.19
  6. Step 6: Final answer
    x = 15,054.41

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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.