Home / 8,363.76-11,515.68-6,367.92

Finding the Fourth Proportional to 8,363.76, 11,515.68 and 6,367.92

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Solution

The fourth proportional to 8,363.76, 11,515.68 and 6,367.92 is: 8,767.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,363.76 : 11,515.68 = 6,367.92 : x
  2. Step 2: Convert to fraction form
    8,363.76/11,515.68 = 6,367.92/x
  3. Step 3: Cross multiply
    8,363.76x = 11,515.68 × 6,367.92
  4. Step 4: Simplify right side
    8,363.76x = 73,330,928.99
  5. Step 5: Solve for x
    x = 73,330,928.99/8,363.76
  6. Step 6: Final answer
    x = 8,767.70

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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.