Home / 11,400.92-15,728.94-6,922.98

Finding the Fourth Proportional to 11,400.92, 15,728.94 and 6,922.98

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Solution

The fourth proportional to 11,400.92, 15,728.94 and 6,922.98 is: 9,551.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,400.92 : 15,728.94 = 6,922.98 : x
  2. Step 2: Convert to fraction form
    11,400.92/15,728.94 = 6,922.98/x
  3. Step 3: Cross multiply
    11,400.92x = 15,728.94 × 6,922.98
  4. Step 4: Simplify right side
    11,400.92x = 108,891,137.04
  5. Step 5: Solve for x
    x = 108,891,137.04/11,400.92
  6. Step 6: Final answer
    x = 9,551.08

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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.