Home / 11,680.99-16,119.61-6,375.72

Finding the Fourth Proportional to 11,680.99, 16,119.61 and 6,375.72

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Solution

The fourth proportional to 11,680.99, 16,119.61 and 6,375.72 is: 8,798.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,680.99 : 16,119.61 = 6,375.72 : x
  2. Step 2: Convert to fraction form
    11,680.99/16,119.61 = 6,375.72/x
  3. Step 3: Cross multiply
    11,680.99x = 16,119.61 × 6,375.72
  4. Step 4: Simplify right side
    11,680.99x = 102,774,119.87
  5. Step 5: Solve for x
    x = 102,774,119.87/11,680.99
  6. Step 6: Final answer
    x = 8,798.41

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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.