Home / 12,965.82-19,447.79-4,644.29

Finding the Fourth Proportional to 12,965.82, 19,447.79 and 4,644.29

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Solution

The fourth proportional to 12,965.82, 19,447.79 and 4,644.29 is: 6,966.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,965.82 : 19,447.79 = 4,644.29 : x
  2. Step 2: Convert to fraction form
    12,965.82/19,447.79 = 4,644.29/x
  3. Step 3: Cross multiply
    12,965.82x = 19,447.79 × 4,644.29
  4. Step 4: Simplify right side
    12,965.82x = 90,321,056.16
  5. Step 5: Solve for x
    x = 90,321,056.16/12,965.82
  6. Step 6: Final answer
    x = 6,966.09

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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.