Home / 14,257.38-21,390.36-10,105.38

Finding the Fourth Proportional to 14,257.38, 21,390.36 and 10,105.38

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Solution

The fourth proportional to 14,257.38, 21,390.36 and 10,105.38 is: 15,161.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,257.38 : 21,390.36 = 10,105.38 : x
  2. Step 2: Convert to fraction form
    14,257.38/21,390.36 = 10,105.38/x
  3. Step 3: Cross multiply
    14,257.38x = 21,390.36 × 10,105.38
  4. Step 4: Simplify right side
    14,257.38x = 216,157,716.14
  5. Step 5: Solve for x
    x = 216,157,716.14/14,257.38
  6. Step 6: Final answer
    x = 15,161.11

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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.