Home / 8,145.05-11,230.31-6,883.88

Finding the Fourth Proportional to 8,145.05, 11,230.31 and 6,883.88

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Solution

The fourth proportional to 8,145.05, 11,230.31 and 6,883.88 is: 9,491.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.05 : 11,230.31 = 6,883.88 : x
  2. Step 2: Convert to fraction form
    8,145.05/11,230.31 = 6,883.88/x
  3. Step 3: Cross multiply
    8,145.05x = 11,230.31 × 6,883.88
  4. Step 4: Simplify right side
    8,145.05x = 77,308,050.25
  5. Step 5: Solve for x
    x = 77,308,050.25/8,145.05
  6. Step 6: Final answer
    x = 9,491.42

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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.