Home / 14,161.56-21,257.05-13,843.87

Finding the Fourth Proportional to 14,161.56, 21,257.05 and 13,843.87

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Solution

The fourth proportional to 14,161.56, 21,257.05 and 13,843.87 is: 20,780.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,161.56 : 21,257.05 = 13,843.87 : x
  2. Step 2: Convert to fraction form
    14,161.56/21,257.05 = 13,843.87/x
  3. Step 3: Cross multiply
    14,161.56x = 21,257.05 × 13,843.87
  4. Step 4: Simplify right side
    14,161.56x = 294,279,836.78
  5. Step 5: Solve for x
    x = 294,279,836.78/14,161.56
  6. Step 6: Final answer
    x = 20,780.19

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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.