Home / 12,622.43-17,418.85-6,879.87

Finding the Fourth Proportional to 12,622.43, 17,418.85 and 6,879.87

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Solution

The fourth proportional to 12,622.43, 17,418.85 and 6,879.87 is: 9,494.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,622.43 : 17,418.85 = 6,879.87 : x
  2. Step 2: Convert to fraction form
    12,622.43/17,418.85 = 6,879.87/x
  3. Step 3: Cross multiply
    12,622.43x = 17,418.85 × 6,879.87
  4. Step 4: Simplify right side
    12,622.43x = 119,839,445.05
  5. Step 5: Solve for x
    x = 119,839,445.05/12,622.43
  6. Step 6: Final answer
    x = 9,494.17

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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.