Home / 18,579.07-25,638.97-10,081.20

Finding the Fourth Proportional to 18,579.07, 25,638.97 and 10,081.20

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Solution

The fourth proportional to 18,579.07, 25,638.97 and 10,081.20 is: 13,911.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,579.07 : 25,638.97 = 10,081.20 : x
  2. Step 2: Convert to fraction form
    18,579.07/25,638.97 = 10,081.20/x
  3. Step 3: Cross multiply
    18,579.07x = 25,638.97 × 10,081.20
  4. Step 4: Simplify right side
    18,579.07x = 258,471,584.36
  5. Step 5: Solve for x
    x = 258,471,584.36/18,579.07
  6. Step 6: Final answer
    x = 13,911.98

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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.