Home / 12,051.18-18,078.39-11,322.18

Finding the Fourth Proportional to 12,051.18, 18,078.39 and 11,322.18

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Solution

The fourth proportional to 12,051.18, 18,078.39 and 11,322.18 is: 16,984.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,051.18 : 18,078.39 = 11,322.18 : x
  2. Step 2: Convert to fraction form
    12,051.18/18,078.39 = 11,322.18/x
  3. Step 3: Cross multiply
    12,051.18x = 18,078.39 × 11,322.18
  4. Step 4: Simplify right side
    12,051.18x = 204,686,785.69
  5. Step 5: Solve for x
    x = 204,686,785.69/12,051.18
  6. Step 6: Final answer
    x = 16,984.79

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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.