Home / 13,382.22-18,467.06-7,716.99

Finding the Fourth Proportional to 13,382.22, 18,467.06 and 7,716.99

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Solution

The fourth proportional to 13,382.22, 18,467.06 and 7,716.99 is: 10,649.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382.22 : 18,467.06 = 7,716.99 : x
  2. Step 2: Convert to fraction form
    13,382.22/18,467.06 = 7,716.99/x
  3. Step 3: Cross multiply
    13,382.22x = 18,467.06 × 7,716.99
  4. Step 4: Simplify right side
    13,382.22x = 142,510,078.76
  5. Step 5: Solve for x
    x = 142,510,078.76/13,382.22
  6. Step 6: Final answer
    x = 10,649.21

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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.