Home / 13,162.05-18,163.91-7,193.71

Finding the Fourth Proportional to 13,162.05, 18,163.91 and 7,193.71

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Solution

The fourth proportional to 13,162.05, 18,163.91 and 7,193.71 is: 9,927.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,162.05 : 18,163.91 = 7,193.71 : x
  2. Step 2: Convert to fraction form
    13,162.05/18,163.91 = 7,193.71/x
  3. Step 3: Cross multiply
    13,162.05x = 18,163.91 × 7,193.71
  4. Step 4: Simplify right side
    13,162.05x = 130,665,971.52
  5. Step 5: Solve for x
    x = 130,665,971.52/13,162.05
  6. Step 6: Final answer
    x = 9,927.48

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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.