Home / 10,968.40-16,451.38-3,177.21

Finding the Fourth Proportional to 10,968.40, 16,451.38 and 3,177.21

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Solution

The fourth proportional to 10,968.40, 16,451.38 and 3,177.21 is: 4,765.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,968.40 : 16,451.38 = 3,177.21 : x
  2. Step 2: Convert to fraction form
    10,968.40/16,451.38 = 3,177.21/x
  3. Step 3: Cross multiply
    10,968.40x = 16,451.38 × 3,177.21
  4. Step 4: Simplify right side
    10,968.40x = 52,269,489.05
  5. Step 5: Solve for x
    x = 52,269,489.05/10,968.40
  6. Step 6: Final answer
    x = 4,765.46

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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.