Home / 18,161.18-27,239.72-5,015.42

Finding the Fourth Proportional to 18,161.18, 27,239.72 and 5,015.42

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Solution

The fourth proportional to 18,161.18, 27,239.72 and 5,015.42 is: 7,522.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,161.18 : 27,239.72 = 5,015.42 : x
  2. Step 2: Convert to fraction form
    18,161.18/27,239.72 = 5,015.42/x
  3. Step 3: Cross multiply
    18,161.18x = 27,239.72 × 5,015.42
  4. Step 4: Simplify right side
    18,161.18x = 136,618,636.48
  5. Step 5: Solve for x
    x = 136,618,636.48/18,161.18
  6. Step 6: Final answer
    x = 7,522.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.