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Finding the Fourth Proportional to 18,326, 25,287.73 and 10,260.09

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Solution

The fourth proportional to 18,326, 25,287.73 and 10,260.09 is: 14,157.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,326 : 25,287.73 = 10,260.09 : x
  2. Step 2: Convert to fraction form
    18,326/25,287.73 = 10,260.09/x
  3. Step 3: Cross multiply
    18,326x = 25,287.73 × 10,260.09
  4. Step 4: Simplify right side
    18,326x = 259,454,385.70
  5. Step 5: Solve for x
    x = 259,454,385.70/18,326
  6. Step 6: Final answer
    x = 14,157.72

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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.