Home / 8,108.53-11,189.61-4,571.74

Finding the Fourth Proportional to 8,108.53, 11,189.61 and 4,571.74

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Solution

The fourth proportional to 8,108.53, 11,189.61 and 4,571.74 is: 6,308.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.53 : 11,189.61 = 4,571.74 : x
  2. Step 2: Convert to fraction form
    8,108.53/11,189.61 = 4,571.74/x
  3. Step 3: Cross multiply
    8,108.53x = 11,189.61 × 4,571.74
  4. Step 4: Simplify right side
    8,108.53x = 51,155,987.62
  5. Step 5: Solve for x
    x = 51,155,987.62/8,108.53
  6. Step 6: Final answer
    x = 6,308.91

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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.