Home / 11,215.56-16,825.54-3,318.20

Finding the Fourth Proportional to 11,215.56, 16,825.54 and 3,318.20

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Solution

The fourth proportional to 11,215.56, 16,825.54 and 3,318.20 is: 4,977.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.56 : 16,825.54 = 3,318.20 : x
  2. Step 2: Convert to fraction form
    11,215.56/16,825.54 = 3,318.20/x
  3. Step 3: Cross multiply
    11,215.56x = 16,825.54 × 3,318.20
  4. Step 4: Simplify right side
    11,215.56x = 55,830,506.83
  5. Step 5: Solve for x
    x = 55,830,506.83/11,215.56
  6. Step 6: Final answer
    x = 4,977.95

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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.