Home / 12,826.41-19,235.97-8,139.35

Finding the Fourth Proportional to 12,826.41, 19,235.97 and 8,139.35

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Solution

The fourth proportional to 12,826.41, 19,235.97 and 8,139.35 is: 12,206.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,826.41 : 19,235.97 = 8,139.35 : x
  2. Step 2: Convert to fraction form
    12,826.41/19,235.97 = 8,139.35/x
  3. Step 3: Cross multiply
    12,826.41x = 19,235.97 × 8,139.35
  4. Step 4: Simplify right side
    12,826.41x = 156,568,196.24
  5. Step 5: Solve for x
    x = 156,568,196.24/12,826.41
  6. Step 6: Final answer
    x = 12,206.70

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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.