Home / 8,311.75-11,471.28-4,775.65

Finding the Fourth Proportional to 8,311.75, 11,471.28 and 4,775.65

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Solution

The fourth proportional to 8,311.75, 11,471.28 and 4,775.65 is: 6,591.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.75 : 11,471.28 = 4,775.65 : x
  2. Step 2: Convert to fraction form
    8,311.75/11,471.28 = 4,775.65/x
  3. Step 3: Cross multiply
    8,311.75x = 11,471.28 × 4,775.65
  4. Step 4: Simplify right side
    8,311.75x = 54,782,818.33
  5. Step 5: Solve for x
    x = 54,782,818.33/8,311.75
  6. Step 6: Final answer
    x = 6,591.01

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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.