Home / 11,388.82-15,716.69-6,353.50

Finding the Fourth Proportional to 11,388.82, 15,716.69 and 6,353.50

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Solution

The fourth proportional to 11,388.82, 15,716.69 and 6,353.50 is: 8,767.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,388.82 : 15,716.69 = 6,353.50 : x
  2. Step 2: Convert to fraction form
    11,388.82/15,716.69 = 6,353.50/x
  3. Step 3: Cross multiply
    11,388.82x = 15,716.69 × 6,353.50
  4. Step 4: Simplify right side
    11,388.82x = 99,855,989.92
  5. Step 5: Solve for x
    x = 99,855,989.92/11,388.82
  6. Step 6: Final answer
    x = 8,767.90

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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.