Home / 12,622.33-18,844.48-9,645.05

Finding the Fourth Proportional to 12,622.33, 18,844.48 and 9,645.05

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Solution

The fourth proportional to 12,622.33, 18,844.48 and 9,645.05 is: 14,399.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,622.33 : 18,844.48 = 9,645.05 : x
  2. Step 2: Convert to fraction form
    12,622.33/18,844.48 = 9,645.05/x
  3. Step 3: Cross multiply
    12,622.33x = 18,844.48 × 9,645.05
  4. Step 4: Simplify right side
    12,622.33x = 181,755,951.82
  5. Step 5: Solve for x
    x = 181,755,951.82/12,622.33
  6. Step 6: Final answer
    x = 14,399.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.