Home / 12,479.20-17,197.62-8,936.26

Finding the Fourth Proportional to 12,479.20, 17,197.62 and 8,936.26

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Solution

The fourth proportional to 12,479.20, 17,197.62 and 8,936.26 is: 12,315.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,479.20 : 17,197.62 = 8,936.26 : x
  2. Step 2: Convert to fraction form
    12,479.20/17,197.62 = 8,936.26/x
  3. Step 3: Cross multiply
    12,479.20x = 17,197.62 × 8,936.26
  4. Step 4: Simplify right side
    12,479.20x = 153,682,327.20
  5. Step 5: Solve for x
    x = 153,682,327.20/12,479.20
  6. Step 6: Final answer
    x = 12,315.08

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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.