Home / 8,311.82-11,470.82-4,775.56

Finding the Fourth Proportional to 8,311.82, 11,470.82 and 4,775.56

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Solution

The fourth proportional to 8,311.82, 11,470.82 and 4,775.56 is: 6,590.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.82 : 11,470.82 = 4,775.56 : x
  2. Step 2: Convert to fraction form
    8,311.82/11,470.82 = 4,775.56/x
  3. Step 3: Cross multiply
    8,311.82x = 11,470.82 × 4,775.56
  4. Step 4: Simplify right side
    8,311.82x = 54,779,536.60
  5. Step 5: Solve for x
    x = 54,779,536.60/8,311.82
  6. Step 6: Final answer
    x = 6,590.56

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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.