Home / 8,180.82-11,300.09-6,315.46

Finding the Fourth Proportional to 8,180.82, 11,300.09 and 6,315.46

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Solution

The fourth proportional to 8,180.82, 11,300.09 and 6,315.46 is: 8,723.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180.82 : 11,300.09 = 6,315.46 : x
  2. Step 2: Convert to fraction form
    8,180.82/11,300.09 = 6,315.46/x
  3. Step 3: Cross multiply
    8,180.82x = 11,300.09 × 6,315.46
  4. Step 4: Simplify right side
    8,180.82x = 71,365,206.56
  5. Step 5: Solve for x
    x = 71,365,206.56/8,180.82
  6. Step 6: Final answer
    x = 8,723.48

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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.