Home / 13,781.01-19,017.41-8,474.97

Finding the Fourth Proportional to 13,781.01, 19,017.41 and 8,474.97

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Solution

The fourth proportional to 13,781.01, 19,017.41 and 8,474.97 is: 11,695.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,781.01 : 19,017.41 = 8,474.97 : x
  2. Step 2: Convert to fraction form
    13,781.01/19,017.41 = 8,474.97/x
  3. Step 3: Cross multiply
    13,781.01x = 19,017.41 × 8,474.97
  4. Step 4: Simplify right side
    13,781.01x = 161,171,936.85
  5. Step 5: Solve for x
    x = 161,171,936.85/13,781.01
  6. Step 6: Final answer
    x = 11,695.22

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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.