Home / 12,276.80-16,940.48-8,306.56

Finding the Fourth Proportional to 12,276.80, 16,940.48 and 8,306.56

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Solution

The fourth proportional to 12,276.80, 16,940.48 and 8,306.56 is: 11,462.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.80 : 16,940.48 = 8,306.56 : x
  2. Step 2: Convert to fraction form
    12,276.80/16,940.48 = 8,306.56/x
  3. Step 3: Cross multiply
    12,276.80x = 16,940.48 × 8,306.56
  4. Step 4: Simplify right side
    12,276.80x = 140,717,113.55
  5. Step 5: Solve for x
    x = 140,717,113.55/12,276.80
  6. Step 6: Final answer
    x = 11,462.04

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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.