Home / 9,418.94-12,911.70-9,331.82

Finding the Fourth Proportional to 9,418.94, 12,911.70 and 9,331.82

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Solution

The fourth proportional to 9,418.94, 12,911.70 and 9,331.82 is: 12,792.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418.94 : 12,911.70 = 9,331.82 : x
  2. Step 2: Convert to fraction form
    9,418.94/12,911.70 = 9,331.82/x
  3. Step 3: Cross multiply
    9,418.94x = 12,911.70 × 9,331.82
  4. Step 4: Simplify right side
    9,418.94x = 120,489,660.29
  5. Step 5: Solve for x
    x = 120,489,660.29/9,418.94
  6. Step 6: Final answer
    x = 12,792.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.