Home / 18,245.16-25,161.53-11,519.10

Finding the Fourth Proportional to 18,245.16, 25,161.53 and 11,519.10

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Solution

The fourth proportional to 18,245.16, 25,161.53 and 11,519.10 is: 15,885.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.16 : 25,161.53 = 11,519.10 : x
  2. Step 2: Convert to fraction form
    18,245.16/25,161.53 = 11,519.10/x
  3. Step 3: Cross multiply
    18,245.16x = 25,161.53 × 11,519.10
  4. Step 4: Simplify right side
    18,245.16x = 289,838,122.63
  5. Step 5: Solve for x
    x = 289,838,122.63/18,245.16
  6. Step 6: Final answer
    x = 15,885.75

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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.