Home / 8,108.87-11,190.09-4,572.08

Finding the Fourth Proportional to 8,108.87, 11,190.09 and 4,572.08

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Solution

The fourth proportional to 8,108.87, 11,190.09 and 4,572.08 is: 6,309.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.87 : 11,190.09 = 4,572.08 : x
  2. Step 2: Convert to fraction form
    8,108.87/11,190.09 = 4,572.08/x
  3. Step 3: Cross multiply
    8,108.87x = 11,190.09 × 4,572.08
  4. Step 4: Simplify right side
    8,108.87x = 51,161,986.69
  5. Step 5: Solve for x
    x = 51,161,986.69/8,108.87
  6. Step 6: Final answer
    x = 6,309.39

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Half scale
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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.