Home / 11,557.97-15,949.83-6,453.56

Finding the Fourth Proportional to 11,557.97, 15,949.83 and 6,453.56

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Solution

The fourth proportional to 11,557.97, 15,949.83 and 6,453.56 is: 8,905.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,557.97 : 15,949.83 = 6,453.56 : x
  2. Step 2: Convert to fraction form
    11,557.97/15,949.83 = 6,453.56/x
  3. Step 3: Cross multiply
    11,557.97x = 15,949.83 × 6,453.56
  4. Step 4: Simplify right side
    11,557.97x = 102,933,204.11
  5. Step 5: Solve for x
    x = 102,933,204.11/11,557.97
  6. Step 6: Final answer
    x = 8,905.82

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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.