Home / 10,961.21-15,122.84-6,180.56

Finding the Fourth Proportional to 10,961.21, 15,122.84 and 6,180.56

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Solution

The fourth proportional to 10,961.21, 15,122.84 and 6,180.56 is: 8,527.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961.21 : 15,122.84 = 6,180.56 : x
  2. Step 2: Convert to fraction form
    10,961.21/15,122.84 = 6,180.56/x
  3. Step 3: Cross multiply
    10,961.21x = 15,122.84 × 6,180.56
  4. Step 4: Simplify right side
    10,961.21x = 93,467,619.99
  5. Step 5: Solve for x
    x = 93,467,619.99/10,961.21
  6. Step 6: Final answer
    x = 8,527.13

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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.