Home / 12,017.22-18,013.46-5,767.86

Finding the Fourth Proportional to 12,017.22, 18,013.46 and 5,767.86

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Solution

The fourth proportional to 12,017.22, 18,013.46 and 5,767.86 is: 8,645.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,017.22 : 18,013.46 = 5,767.86 : x
  2. Step 2: Convert to fraction form
    12,017.22/18,013.46 = 5,767.86/x
  3. Step 3: Cross multiply
    12,017.22x = 18,013.46 × 5,767.86
  4. Step 4: Simplify right side
    12,017.22x = 103,899,115.40
  5. Step 5: Solve for x
    x = 103,899,115.40/12,017.22
  6. Step 6: Final answer
    x = 8,645.85

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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.