Home / 12,076.12-18,111.30-6,229.72

Finding the Fourth Proportional to 12,076.12, 18,111.30 and 6,229.72

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Solution

The fourth proportional to 12,076.12, 18,111.30 and 6,229.72 is: 9,343.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,076.12 : 18,111.30 = 6,229.72 : x
  2. Step 2: Convert to fraction form
    12,076.12/18,111.30 = 6,229.72/x
  3. Step 3: Cross multiply
    12,076.12x = 18,111.30 × 6,229.72
  4. Step 4: Simplify right side
    12,076.12x = 112,828,327.84
  5. Step 5: Solve for x
    x = 112,828,327.84/12,076.12
  6. Step 6: Final answer
    x = 9,343.09

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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.