Home / 13,188.14-18,200.87-7,882.84

Finding the Fourth Proportional to 13,188.14, 18,200.87 and 7,882.84

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Solution

The fourth proportional to 13,188.14, 18,200.87 and 7,882.84 is: 10,879.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188.14 : 18,200.87 = 7,882.84 : x
  2. Step 2: Convert to fraction form
    13,188.14/18,200.87 = 7,882.84/x
  3. Step 3: Cross multiply
    13,188.14x = 18,200.87 × 7,882.84
  4. Step 4: Simplify right side
    13,188.14x = 143,474,558.97
  5. Step 5: Solve for x
    x = 143,474,558.97/13,188.14
  6. Step 6: Final answer
    x = 10,879.06

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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.