Home / 12,231.16-16,878.06-7,195.56

Finding the Fourth Proportional to 12,231.16, 16,878.06 and 7,195.56

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Solution

The fourth proportional to 12,231.16, 16,878.06 and 7,195.56 is: 9,929.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.16 : 16,878.06 = 7,195.56 : x
  2. Step 2: Convert to fraction form
    12,231.16/16,878.06 = 7,195.56/x
  3. Step 3: Cross multiply
    12,231.16x = 16,878.06 × 7,195.56
  4. Step 4: Simplify right side
    12,231.16x = 121,447,093.41
  5. Step 5: Solve for x
    x = 121,447,093.41/12,231.16
  6. Step 6: Final answer
    x = 9,929.32

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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.