Home / 11,925.52-16,456.44-6,620.08

Finding the Fourth Proportional to 11,925.52, 16,456.44 and 6,620.08

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Solution

The fourth proportional to 11,925.52, 16,456.44 and 6,620.08 is: 9,135.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,925.52 : 16,456.44 = 6,620.08 : x
  2. Step 2: Convert to fraction form
    11,925.52/16,456.44 = 6,620.08/x
  3. Step 3: Cross multiply
    11,925.52x = 16,456.44 × 6,620.08
  4. Step 4: Simplify right side
    11,925.52x = 108,942,949.32
  5. Step 5: Solve for x
    x = 108,942,949.32/11,925.52
  6. Step 6: Final answer
    x = 9,135.28

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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.