Home / 18,122.20-25,014.10-11,749.08

Finding the Fourth Proportional to 18,122.20, 25,014.10 and 11,749.08

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Solution

The fourth proportional to 18,122.20, 25,014.10 and 11,749.08 is: 16,217.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.20 : 25,014.10 = 11,749.08 : x
  2. Step 2: Convert to fraction form
    18,122.20/25,014.10 = 11,749.08/x
  3. Step 3: Cross multiply
    18,122.20x = 25,014.10 × 11,749.08
  4. Step 4: Simplify right side
    18,122.20x = 293,892,662.03
  5. Step 5: Solve for x
    x = 293,892,662.03/18,122.20
  6. Step 6: Final answer
    x = 16,217.27

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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.