Home / 9,163.83-12,645.32-5,387.12

Finding the Fourth Proportional to 9,163.83, 12,645.32 and 5,387.12

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Solution

The fourth proportional to 9,163.83, 12,645.32 and 5,387.12 is: 7,433.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,163.83 : 12,645.32 = 5,387.12 : x
  2. Step 2: Convert to fraction form
    9,163.83/12,645.32 = 5,387.12/x
  3. Step 3: Cross multiply
    9,163.83x = 12,645.32 × 5,387.12
  4. Step 4: Simplify right side
    9,163.83x = 68,121,766.12
  5. Step 5: Solve for x
    x = 68,121,766.12/9,163.83
  6. Step 6: Final answer
    x = 7,433.77

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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.