Home / 12,243.13-16,889.49-7,992.22

Finding the Fourth Proportional to 12,243.13, 16,889.49 and 7,992.22

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Solution

The fourth proportional to 12,243.13, 16,889.49 and 7,992.22 is: 11,025.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243.13 : 16,889.49 = 7,992.22 : x
  2. Step 2: Convert to fraction form
    12,243.13/16,889.49 = 7,992.22/x
  3. Step 3: Cross multiply
    12,243.13x = 16,889.49 × 7,992.22
  4. Step 4: Simplify right side
    12,243.13x = 134,984,519.77
  5. Step 5: Solve for x
    x = 134,984,519.77/12,243.13
  6. Step 6: Final answer
    x = 11,025.33

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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.