Home / 12,992.16-19,484.79-3,631.60

Finding the Fourth Proportional to 12,992.16, 19,484.79 and 3,631.60

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Solution

The fourth proportional to 12,992.16, 19,484.79 and 3,631.60 is: 5,446.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,992.16 : 19,484.79 = 3,631.60 : x
  2. Step 2: Convert to fraction form
    12,992.16/19,484.79 = 3,631.60/x
  3. Step 3: Cross multiply
    12,992.16x = 19,484.79 × 3,631.60
  4. Step 4: Simplify right side
    12,992.16x = 70,760,974.10
  5. Step 5: Solve for x
    x = 70,760,974.10/12,992.16
  6. Step 6: Final answer
    x = 5,446.43

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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.