Home / 12,917.82-19,378.76-5,522.32

Finding the Fourth Proportional to 12,917.82, 19,378.76 and 5,522.32

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Solution

The fourth proportional to 12,917.82, 19,378.76 and 5,522.32 is: 8,284.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,917.82 : 19,378.76 = 5,522.32 : x
  2. Step 2: Convert to fraction form
    12,917.82/19,378.76 = 5,522.32/x
  3. Step 3: Cross multiply
    12,917.82x = 19,378.76 × 5,522.32
  4. Step 4: Simplify right side
    12,917.82x = 107,015,713.92
  5. Step 5: Solve for x
    x = 107,015,713.92/12,917.82
  6. Step 6: Final answer
    x = 8,284.35

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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.