Home / 10,790.80-16,186.20-3,395.76

Finding the Fourth Proportional to 10,790.80, 16,186.20 and 3,395.76

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Solution

The fourth proportional to 10,790.80, 16,186.20 and 3,395.76 is: 5,093.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,790.80 : 16,186.20 = 3,395.76 : x
  2. Step 2: Convert to fraction form
    10,790.80/16,186.20 = 3,395.76/x
  3. Step 3: Cross multiply
    10,790.80x = 16,186.20 × 3,395.76
  4. Step 4: Simplify right side
    10,790.80x = 54,964,450.51
  5. Step 5: Solve for x
    x = 54,964,450.51/10,790.80
  6. Step 6: Final answer
    x = 5,093.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.