Home / 8,109.36-11,190.90-4,572.56

Finding the Fourth Proportional to 8,109.36, 11,190.90 and 4,572.56

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Solution

The fourth proportional to 8,109.36, 11,190.90 and 4,572.56 is: 6,310.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.36 : 11,190.90 = 4,572.56 : x
  2. Step 2: Convert to fraction form
    8,109.36/11,190.90 = 4,572.56/x
  3. Step 3: Cross multiply
    8,109.36x = 11,190.90 × 4,572.56
  4. Step 4: Simplify right side
    8,109.36x = 51,171,005.75
  5. Step 5: Solve for x
    x = 51,171,005.75/8,109.36
  6. Step 6: Final answer
    x = 6,310.12

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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.