Home / 11,431.04-17,146.55-3,639.85

Finding the Fourth Proportional to 11,431.04, 17,146.55 and 3,639.85

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Solution

The fourth proportional to 11,431.04, 17,146.55 and 3,639.85 is: 5,459.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431.04 : 17,146.55 = 3,639.85 : x
  2. Step 2: Convert to fraction form
    11,431.04/17,146.55 = 3,639.85/x
  3. Step 3: Cross multiply
    11,431.04x = 17,146.55 × 3,639.85
  4. Step 4: Simplify right side
    11,431.04x = 62,410,836.25
  5. Step 5: Solve for x
    x = 62,410,836.25/11,431.04
  6. Step 6: Final answer
    x = 5,459.77

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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.