Home / 12,879.39-19,326.26-6,956.15

Finding the Fourth Proportional to 12,879.39, 19,326.26 and 6,956.15

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Solution

The fourth proportional to 12,879.39, 19,326.26 and 6,956.15 is: 10,438.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,879.39 : 19,326.26 = 6,956.15 : x
  2. Step 2: Convert to fraction form
    12,879.39/19,326.26 = 6,956.15/x
  3. Step 3: Cross multiply
    12,879.39x = 19,326.26 × 6,956.15
  4. Step 4: Simplify right side
    12,879.39x = 134,436,462.00
  5. Step 5: Solve for x
    x = 134,436,462.00/12,879.39
  6. Step 6: Final answer
    x = 10,438.11

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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.