Home / 26,874.91-40,315.80-8,857.10

Finding the Fourth Proportional to 26,874.91, 40,315.80 and 8,857.10

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Solution

The fourth proportional to 26,874.91, 40,315.80 and 8,857.10 is: 13,286.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,874.91 : 40,315.80 = 8,857.10 : x
  2. Step 2: Convert to fraction form
    26,874.91/40,315.80 = 8,857.10/x
  3. Step 3: Cross multiply
    26,874.91x = 40,315.80 × 8,857.10
  4. Step 4: Simplify right side
    26,874.91x = 357,080,870.60
  5. Step 5: Solve for x
    x = 357,080,870.60/26,874.91
  6. Step 6: Final answer
    x = 13,286.78

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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.