Home / 15,705.43-21,692.73-11,744.17

Finding the Fourth Proportional to 15,705.43, 21,692.73 and 11,744.17

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Solution

The fourth proportional to 15,705.43, 21,692.73 and 11,744.17 is: 16,221.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,705.43 : 21,692.73 = 11,744.17 : x
  2. Step 2: Convert to fraction form
    15,705.43/21,692.73 = 11,744.17/x
  3. Step 3: Cross multiply
    15,705.43x = 21,692.73 × 11,744.17
  4. Step 4: Simplify right side
    15,705.43x = 254,763,108.88
  5. Step 5: Solve for x
    x = 254,763,108.88/15,705.43
  6. Step 6: Final answer
    x = 16,221.34

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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.