Home / 19,861.09-27,408.64-10,908.97

Finding the Fourth Proportional to 19,861.09, 27,408.64 and 10,908.97

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Solution

The fourth proportional to 19,861.09, 27,408.64 and 10,908.97 is: 15,054.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,861.09 : 27,408.64 = 10,908.97 : x
  2. Step 2: Convert to fraction form
    19,861.09/27,408.64 = 10,908.97/x
  3. Step 3: Cross multiply
    19,861.09x = 27,408.64 × 10,908.97
  4. Step 4: Simplify right side
    19,861.09x = 299,000,031.50
  5. Step 5: Solve for x
    x = 299,000,031.50/19,861.09
  6. Step 6: Final answer
    x = 15,054.56

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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.