Home / 11,183.20-16,774.80-10,338.40

Finding the Fourth Proportional to 11,183.20, 16,774.80 and 10,338.40

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Solution

The fourth proportional to 11,183.20, 16,774.80 and 10,338.40 is: 15,507.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,183.20 : 16,774.80 = 10,338.40 : x
  2. Step 2: Convert to fraction form
    11,183.20/16,774.80 = 10,338.40/x
  3. Step 3: Cross multiply
    11,183.20x = 16,774.80 × 10,338.40
  4. Step 4: Simplify right side
    11,183.20x = 173,424,592.32
  5. Step 5: Solve for x
    x = 173,424,592.32/11,183.20
  6. Step 6: Final answer
    x = 15,507.60

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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.