Home / 13,227.15-18,248.66-8,692.27

Finding the Fourth Proportional to 13,227.15, 18,248.66 and 8,692.27

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Solution

The fourth proportional to 13,227.15, 18,248.66 and 8,692.27 is: 11,992.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,227.15 : 18,248.66 = 8,692.27 : x
  2. Step 2: Convert to fraction form
    13,227.15/18,248.66 = 8,692.27/x
  3. Step 3: Cross multiply
    13,227.15x = 18,248.66 × 8,692.27
  4. Step 4: Simplify right side
    13,227.15x = 158,622,279.86
  5. Step 5: Solve for x
    x = 158,622,279.86/13,227.15
  6. Step 6: Final answer
    x = 11,992.17

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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.