Home / 10,941.28-16,412.20-3,921.80

Finding the Fourth Proportional to 10,941.28, 16,412.20 and 3,921.80

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Solution

The fourth proportional to 10,941.28, 16,412.20 and 3,921.80 is: 5,882.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,941.28 : 16,412.20 = 3,921.80 : x
  2. Step 2: Convert to fraction form
    10,941.28/16,412.20 = 3,921.80/x
  3. Step 3: Cross multiply
    10,941.28x = 16,412.20 × 3,921.80
  4. Step 4: Simplify right side
    10,941.28x = 64,365,365.96
  5. Step 5: Solve for x
    x = 64,365,365.96/10,941.28
  6. Step 6: Final answer
    x = 5,882.80

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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.