Home / 7,813.76-11,716.32-2,618.24

Finding the Fourth Proportional to 7,813.76, 11,716.32 and 2,618.24

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Solution

The fourth proportional to 7,813.76, 11,716.32 and 2,618.24 is: 3,925.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.76 : 11,716.32 = 2,618.24 : x
  2. Step 2: Convert to fraction form
    7,813.76/11,716.32 = 2,618.24/x
  3. Step 3: Cross multiply
    7,813.76x = 11,716.32 × 2,618.24
  4. Step 4: Simplify right side
    7,813.76x = 30,676,137.68
  5. Step 5: Solve for x
    x = 30,676,137.68/7,813.76
  6. Step 6: Final answer
    x = 3,925.91

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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.