Home / 8,286.72-11,435.28-4,750.80

Finding the Fourth Proportional to 8,286.72, 11,435.28 and 4,750.80

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Solution

The fourth proportional to 8,286.72, 11,435.28 and 4,750.80 is: 6,555.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,286.72 : 11,435.28 = 4,750.80 : x
  2. Step 2: Convert to fraction form
    8,286.72/11,435.28 = 4,750.80/x
  3. Step 3: Cross multiply
    8,286.72x = 11,435.28 × 4,750.80
  4. Step 4: Simplify right side
    8,286.72x = 54,326,728.22
  5. Step 5: Solve for x
    x = 54,326,728.22/8,286.72
  6. Step 6: Final answer
    x = 6,555.88

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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.