Home / 12,231.92-16,880.40-6,927.56

Finding the Fourth Proportional to 12,231.92, 16,880.40 and 6,927.56

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Solution

The fourth proportional to 12,231.92, 16,880.40 and 6,927.56 is: 9,560.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.92 : 16,880.40 = 6,927.56 : x
  2. Step 2: Convert to fraction form
    12,231.92/16,880.40 = 6,927.56/x
  3. Step 3: Cross multiply
    12,231.92x = 16,880.40 × 6,927.56
  4. Step 4: Simplify right side
    12,231.92x = 116,939,983.82
  5. Step 5: Solve for x
    x = 116,939,983.82/12,231.92
  6. Step 6: Final answer
    x = 9,560.23

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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.