Home / 12,186.97-16,818.78-7,410.28

Finding the Fourth Proportional to 12,186.97, 16,818.78 and 7,410.28

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Solution

The fourth proportional to 12,186.97, 16,818.78 and 7,410.28 is: 10,226.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,186.97 : 16,818.78 = 7,410.28 : x
  2. Step 2: Convert to fraction form
    12,186.97/16,818.78 = 7,410.28/x
  3. Step 3: Cross multiply
    12,186.97x = 16,818.78 × 7,410.28
  4. Step 4: Simplify right side
    12,186.97x = 124,631,869.06
  5. Step 5: Solve for x
    x = 124,631,869.06/12,186.97
  6. Step 6: Final answer
    x = 10,226.65

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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.