Home / 12,876.92-19,317.18-4,108.86

Finding the Fourth Proportional to 12,876.92, 19,317.18 and 4,108.86

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Solution

The fourth proportional to 12,876.92, 19,317.18 and 4,108.86 is: 6,163.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,876.92 : 19,317.18 = 4,108.86 : x
  2. Step 2: Convert to fraction form
    12,876.92/19,317.18 = 4,108.86/x
  3. Step 3: Cross multiply
    12,876.92x = 19,317.18 × 4,108.86
  4. Step 4: Simplify right side
    12,876.92x = 79,371,588.21
  5. Step 5: Solve for x
    x = 79,371,588.21/12,876.92
  6. Step 6: Final answer
    x = 6,163.86

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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.