Home / 13,716.84-20,575.32-3,328.59

Finding the Fourth Proportional to 13,716.84, 20,575.32 and 3,328.59

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Solution

The fourth proportional to 13,716.84, 20,575.32 and 3,328.59 is: 4,992.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,716.84 : 20,575.32 = 3,328.59 : x
  2. Step 2: Convert to fraction form
    13,716.84/20,575.32 = 3,328.59/x
  3. Step 3: Cross multiply
    13,716.84x = 20,575.32 × 3,328.59
  4. Step 4: Simplify right side
    13,716.84x = 68,486,869.07
  5. Step 5: Solve for x
    x = 68,486,869.07/13,716.84
  6. Step 6: Final answer
    x = 4,992.90

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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.