Home / 26,926.80-40,390.20-8,456.40

Finding the Fourth Proportional to 26,926.80, 40,390.20 and 8,456.40

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Solution

The fourth proportional to 26,926.80, 40,390.20 and 8,456.40 is: 12,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,926.80 : 40,390.20 = 8,456.40 : x
  2. Step 2: Convert to fraction form
    26,926.80/40,390.20 = 8,456.40/x
  3. Step 3: Cross multiply
    26,926.80x = 40,390.20 × 8,456.40
  4. Step 4: Simplify right side
    26,926.80x = 341,555,687.28
  5. Step 5: Solve for x
    x = 341,555,687.28/26,926.80
  6. Step 6: Final answer
    x = 12,684.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.