Home / 12,180.22-16,807.10-7,405.73

Finding the Fourth Proportional to 12,180.22, 16,807.10 and 7,405.73

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Solution

The fourth proportional to 12,180.22, 16,807.10 and 7,405.73 is: 10,218.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.22 : 16,807.10 = 7,405.73 : x
  2. Step 2: Convert to fraction form
    12,180.22/16,807.10 = 7,405.73/x
  3. Step 3: Cross multiply
    12,180.22x = 16,807.10 × 7,405.73
  4. Step 4: Simplify right side
    12,180.22x = 124,468,786.65
  5. Step 5: Solve for x
    x = 124,468,786.65/12,180.22
  6. Step 6: Final answer
    x = 10,218.93

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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.