Home / 13,081.91-19,618.11-7,163.19

Finding the Fourth Proportional to 13,081.91, 19,618.11 and 7,163.19

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Solution

The fourth proportional to 13,081.91, 19,618.11 and 7,163.19 is: 10,742.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081.91 : 19,618.11 = 7,163.19 : x
  2. Step 2: Convert to fraction form
    13,081.91/19,618.11 = 7,163.19/x
  3. Step 3: Cross multiply
    13,081.91x = 19,618.11 × 7,163.19
  4. Step 4: Simplify right side
    13,081.91x = 140,528,249.37
  5. Step 5: Solve for x
    x = 140,528,249.37/13,081.91
  6. Step 6: Final answer
    x = 10,742.19

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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.