Home / 11,218.56-16,819.20-5,372.16

Finding the Fourth Proportional to 11,218.56, 16,819.20 and 5,372.16

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Solution

The fourth proportional to 11,218.56, 16,819.20 and 5,372.16 is: 8,054.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.56 : 16,819.20 = 5,372.16 : x
  2. Step 2: Convert to fraction form
    11,218.56/16,819.20 = 5,372.16/x
  3. Step 3: Cross multiply
    11,218.56x = 16,819.20 × 5,372.16
  4. Step 4: Simplify right side
    11,218.56x = 90,355,433.47
  5. Step 5: Solve for x
    x = 90,355,433.47/11,218.56
  6. Step 6: Final answer
    x = 8,054.10

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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.