Home / 11,190.92-16,782.62-5,640.73

Finding the Fourth Proportional to 11,190.92, 16,782.62 and 5,640.73

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Solution

The fourth proportional to 11,190.92, 16,782.62 and 5,640.73 is: 8,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.92 : 16,782.62 = 5,640.73 : x
  2. Step 2: Convert to fraction form
    11,190.92/16,782.62 = 5,640.73/x
  3. Step 3: Cross multiply
    11,190.92x = 16,782.62 × 5,640.73
  4. Step 4: Simplify right side
    11,190.92x = 94,666,228.11
  5. Step 5: Solve for x
    x = 94,666,228.11/11,190.92
  6. Step 6: Final answer
    x = 8,459.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.