Home / 8,782.42-12,115.20-5,949.94

Finding the Fourth Proportional to 8,782.42, 12,115.20 and 5,949.94

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Solution

The fourth proportional to 8,782.42, 12,115.20 and 5,949.94 is: 8,207.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,782.42 : 12,115.20 = 5,949.94 : x
  2. Step 2: Convert to fraction form
    8,782.42/12,115.20 = 5,949.94/x
  3. Step 3: Cross multiply
    8,782.42x = 12,115.20 × 5,949.94
  4. Step 4: Simplify right side
    8,782.42x = 72,084,713.09
  5. Step 5: Solve for x
    x = 72,084,713.09/8,782.42
  6. Step 6: Final answer
    x = 8,207.84

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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.