Home / 12,163.12-16,785.12-6,574.12

Finding the Fourth Proportional to 12,163.12, 16,785.12 and 6,574.12

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Solution

The fourth proportional to 12,163.12, 16,785.12 and 6,574.12 is: 9,072.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,163.12 : 16,785.12 = 6,574.12 : x
  2. Step 2: Convert to fraction form
    12,163.12/16,785.12 = 6,574.12/x
  3. Step 3: Cross multiply
    12,163.12x = 16,785.12 × 6,574.12
  4. Step 4: Simplify right side
    12,163.12x = 110,347,393.09
  5. Step 5: Solve for x
    x = 110,347,393.09/12,163.12
  6. Step 6: Final answer
    x = 9,072.29

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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.