Home / 9,921.20-14,882.70-4,076.60

Finding the Fourth Proportional to 9,921.20, 14,882.70 and 4,076.60

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Solution

The fourth proportional to 9,921.20, 14,882.70 and 4,076.60 is: 6,115.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,921.20 : 14,882.70 = 4,076.60 : x
  2. Step 2: Convert to fraction form
    9,921.20/14,882.70 = 4,076.60/x
  3. Step 3: Cross multiply
    9,921.20x = 14,882.70 × 4,076.60
  4. Step 4: Simplify right side
    9,921.20x = 60,670,814.82
  5. Step 5: Solve for x
    x = 60,670,814.82/9,921.20
  6. Step 6: Final answer
    x = 6,115.27

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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.