Home / 12,637.28-17,435.94-8,161.22

Finding the Fourth Proportional to 12,637.28, 17,435.94 and 8,161.22

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Solution

The fourth proportional to 12,637.28, 17,435.94 and 8,161.22 is: 11,260.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.28 : 17,435.94 = 8,161.22 : x
  2. Step 2: Convert to fraction form
    12,637.28/17,435.94 = 8,161.22/x
  3. Step 3: Cross multiply
    12,637.28x = 17,435.94 × 8,161.22
  4. Step 4: Simplify right side
    12,637.28x = 142,298,542.25
  5. Step 5: Solve for x
    x = 142,298,542.25/12,637.28
  6. Step 6: Final answer
    x = 11,260.22

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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.