Home / 10,815.48-16,190.34-6,922.62

Finding the Fourth Proportional to 10,815.48, 16,190.34 and 6,922.62

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Solution

The fourth proportional to 10,815.48, 16,190.34 and 6,922.62 is: 10,362.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,815.48 : 16,190.34 = 6,922.62 : x
  2. Step 2: Convert to fraction form
    10,815.48/16,190.34 = 6,922.62/x
  3. Step 3: Cross multiply
    10,815.48x = 16,190.34 × 6,922.62
  4. Step 4: Simplify right side
    10,815.48x = 112,079,571.49
  5. Step 5: Solve for x
    x = 112,079,571.49/10,815.48
  6. Step 6: Final answer
    x = 10,362.88

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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.