Home / 12,876.44-19,314.45-4,111.29

Finding the Fourth Proportional to 12,876.44, 19,314.45 and 4,111.29

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Solution

The fourth proportional to 12,876.44, 19,314.45 and 4,111.29 is: 6,166.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,876.44 : 19,314.45 = 4,111.29 : x
  2. Step 2: Convert to fraction form
    12,876.44/19,314.45 = 4,111.29/x
  3. Step 3: Cross multiply
    12,876.44x = 19,314.45 × 4,111.29
  4. Step 4: Simplify right side
    12,876.44x = 79,407,305.14
  5. Step 5: Solve for x
    x = 79,407,305.14/12,876.44
  6. Step 6: Final answer
    x = 6,166.87

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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.