Home / 11,622.87-16,039.52-6,317.70

Finding the Fourth Proportional to 11,622.87, 16,039.52 and 6,317.70

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Solution

The fourth proportional to 11,622.87, 16,039.52 and 6,317.70 is: 8,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,622.87 : 16,039.52 = 6,317.70 : x
  2. Step 2: Convert to fraction form
    11,622.87/16,039.52 = 6,317.70/x
  3. Step 3: Cross multiply
    11,622.87x = 16,039.52 × 6,317.70
  4. Step 4: Simplify right side
    11,622.87x = 101,332,843.92
  5. Step 5: Solve for x
    x = 101,332,843.92/11,622.87
  6. Step 6: Final answer
    x = 8,718.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.