Home / 13,936.40-19,230.94-8,270.17

Finding the Fourth Proportional to 13,936.40, 19,230.94 and 8,270.17

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Solution

The fourth proportional to 13,936.40, 19,230.94 and 8,270.17 is: 11,412.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,936.40 : 19,230.94 = 8,270.17 : x
  2. Step 2: Convert to fraction form
    13,936.40/19,230.94 = 8,270.17/x
  3. Step 3: Cross multiply
    13,936.40x = 19,230.94 × 8,270.17
  4. Step 4: Simplify right side
    13,936.40x = 159,043,058.80
  5. Step 5: Solve for x
    x = 159,043,058.80/13,936.40
  6. Step 6: Final answer
    x = 11,412.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.