Home / 12,106.05-18,164.55-6,179.88

Finding the Fourth Proportional to 12,106.05, 18,164.55 and 6,179.88

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Solution

The fourth proportional to 12,106.05, 18,164.55 and 6,179.88 is: 9,272.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,106.05 : 18,164.55 = 6,179.88 : x
  2. Step 2: Convert to fraction form
    12,106.05/18,164.55 = 6,179.88/x
  3. Step 3: Cross multiply
    12,106.05x = 18,164.55 × 6,179.88
  4. Step 4: Simplify right side
    12,106.05x = 112,254,693.84
  5. Step 5: Solve for x
    x = 112,254,693.84/12,106.05
  6. Step 6: Final answer
    x = 9,272.61

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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.