Home / 18,358.97-25,331.72-10,805.64

Finding the Fourth Proportional to 18,358.97, 25,331.72 and 10,805.64

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Solution

The fourth proportional to 18,358.97, 25,331.72 and 10,805.64 is: 14,909.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,358.97 : 25,331.72 = 10,805.64 : x
  2. Step 2: Convert to fraction form
    18,358.97/25,331.72 = 10,805.64/x
  3. Step 3: Cross multiply
    18,358.97x = 25,331.72 × 10,805.64
  4. Step 4: Simplify right side
    18,358.97x = 273,725,392.87
  5. Step 5: Solve for x
    x = 273,725,392.87/18,358.97
  6. Step 6: Final answer
    x = 14,909.63

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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.