Home / 18,722.43-25,836.80-10,338.75

Finding the Fourth Proportional to 18,722.43, 25,836.80 and 10,338.75

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Solution

The fourth proportional to 18,722.43, 25,836.80 and 10,338.75 is: 14,267.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722.43 : 25,836.80 = 10,338.75 : x
  2. Step 2: Convert to fraction form
    18,722.43/25,836.80 = 10,338.75/x
  3. Step 3: Cross multiply
    18,722.43x = 25,836.80 × 10,338.75
  4. Step 4: Simplify right side
    18,722.43x = 267,120,164.31
  5. Step 5: Solve for x
    x = 267,120,164.31/18,722.43
  6. Step 6: Final answer
    x = 14,267.39

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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.