Home / 15,486.66-21,371.64-10,190.97

Finding the Fourth Proportional to 15,486.66, 21,371.64 and 10,190.97

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Solution

The fourth proportional to 15,486.66, 21,371.64 and 10,190.97 is: 14,063.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,486.66 : 21,371.64 = 10,190.97 : x
  2. Step 2: Convert to fraction form
    15,486.66/21,371.64 = 10,190.97/x
  3. Step 3: Cross multiply
    15,486.66x = 21,371.64 × 10,190.97
  4. Step 4: Simplify right side
    15,486.66x = 217,797,742.09
  5. Step 5: Solve for x
    x = 217,797,742.09/15,486.66
  6. Step 6: Final answer
    x = 14,063.57

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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.