Home / 12,275.30-16,934.12-8,297.80

Finding the Fourth Proportional to 12,275.30, 16,934.12 and 8,297.80

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Solution

The fourth proportional to 12,275.30, 16,934.12 and 8,297.80 is: 11,447.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,275.30 : 16,934.12 = 8,297.80 : x
  2. Step 2: Convert to fraction form
    12,275.30/16,934.12 = 8,297.80/x
  3. Step 3: Cross multiply
    12,275.30x = 16,934.12 × 8,297.80
  4. Step 4: Simplify right side
    12,275.30x = 140,515,940.94
  5. Step 5: Solve for x
    x = 140,515,940.94/12,275.30
  6. Step 6: Final answer
    x = 11,447.05

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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.