Home / 13,015.32-17,961.12-7,351.23

Finding the Fourth Proportional to 13,015.32, 17,961.12 and 7,351.23

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Solution

The fourth proportional to 13,015.32, 17,961.12 and 7,351.23 is: 10,144.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.32 : 17,961.12 = 7,351.23 : x
  2. Step 2: Convert to fraction form
    13,015.32/17,961.12 = 7,351.23/x
  3. Step 3: Cross multiply
    13,015.32x = 17,961.12 × 7,351.23
  4. Step 4: Simplify right side
    13,015.32x = 132,036,324.18
  5. Step 5: Solve for x
    x = 132,036,324.18/13,015.32
  6. Step 6: Final answer
    x = 10,144.69

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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.