Home / 18,758.54-25,889.97-10,805.38

Finding the Fourth Proportional to 18,758.54, 25,889.97 and 10,805.38

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Solution

The fourth proportional to 18,758.54, 25,889.97 and 10,805.38 is: 14,913.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,758.54 : 25,889.97 = 10,805.38 : x
  2. Step 2: Convert to fraction form
    18,758.54/25,889.97 = 10,805.38/x
  3. Step 3: Cross multiply
    18,758.54x = 25,889.97 × 10,805.38
  4. Step 4: Simplify right side
    18,758.54x = 279,750,834.59
  5. Step 5: Solve for x
    x = 279,750,834.59/18,758.54
  6. Step 6: Final answer
    x = 14,913.25

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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.