Home / 18,511.40-27,754.74-10,195.35

Finding the Fourth Proportional to 18,511.40, 27,754.74 and 10,195.35

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Solution

The fourth proportional to 18,511.40, 27,754.74 and 10,195.35 is: 15,286.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,511.40 : 27,754.74 = 10,195.35 : x
  2. Step 2: Convert to fraction form
    18,511.40/27,754.74 = 10,195.35/x
  3. Step 3: Cross multiply
    18,511.40x = 27,754.74 × 10,195.35
  4. Step 4: Simplify right side
    18,511.40x = 282,969,288.46
  5. Step 5: Solve for x
    x = 282,969,288.46/18,511.40
  6. Step 6: Final answer
    x = 15,286.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.