Home / 8,311.32-11,469.96-4,775.64

Finding the Fourth Proportional to 8,311.32, 11,469.96 and 4,775.64

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Solution

The fourth proportional to 8,311.32, 11,469.96 and 4,775.64 is: 6,590.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.32 : 11,469.96 = 4,775.64 : x
  2. Step 2: Convert to fraction form
    8,311.32/11,469.96 = 4,775.64/x
  3. Step 3: Cross multiply
    8,311.32x = 11,469.96 × 4,775.64
  4. Step 4: Simplify right side
    8,311.32x = 54,776,399.77
  5. Step 5: Solve for x
    x = 54,776,399.77/8,311.32
  6. Step 6: Final answer
    x = 6,590.58

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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.