Home / 13,015.26-17,961.57-7,351.20

Finding the Fourth Proportional to 13,015.26, 17,961.57 and 7,351.20

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Solution

The fourth proportional to 13,015.26, 17,961.57 and 7,351.20 is: 10,144.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.26 : 17,961.57 = 7,351.20 : x
  2. Step 2: Convert to fraction form
    13,015.26/17,961.57 = 7,351.20/x
  3. Step 3: Cross multiply
    13,015.26x = 17,961.57 × 7,351.20
  4. Step 4: Simplify right side
    13,015.26x = 132,039,093.38
  5. Step 5: Solve for x
    x = 132,039,093.38/13,015.26
  6. Step 6: Final answer
    x = 10,144.94

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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.