Home / 11,215.47-16,823.24-3,318.12

Finding the Fourth Proportional to 11,215.47, 16,823.24 and 3,318.12

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Solution

The fourth proportional to 11,215.47, 16,823.24 and 3,318.12 is: 4,977.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.47 : 16,823.24 = 3,318.12 : x
  2. Step 2: Convert to fraction form
    11,215.47/16,823.24 = 3,318.12/x
  3. Step 3: Cross multiply
    11,215.47x = 16,823.24 × 3,318.12
  4. Step 4: Simplify right side
    11,215.47x = 55,821,512.52
  5. Step 5: Solve for x
    x = 55,821,512.52/11,215.47
  6. Step 6: Final answer
    x = 4,977.19

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Similar ratio
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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.