Home / 18,936.03-26,131.91-10,438.48

Finding the Fourth Proportional to 18,936.03, 26,131.91 and 10,438.48

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Solution

The fourth proportional to 18,936.03, 26,131.91 and 10,438.48 is: 14,405.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936.03 : 26,131.91 = 10,438.48 : x
  2. Step 2: Convert to fraction form
    18,936.03/26,131.91 = 10,438.48/x
  3. Step 3: Cross multiply
    18,936.03x = 26,131.91 × 10,438.48
  4. Step 4: Simplify right side
    18,936.03x = 272,777,367.70
  5. Step 5: Solve for x
    x = 272,777,367.70/18,936.03
  6. Step 6: Final answer
    x = 14,405.20

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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.