Home / 12,127.68-16,734.24-6,822.18

Finding the Fourth Proportional to 12,127.68, 16,734.24 and 6,822.18

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Solution

The fourth proportional to 12,127.68, 16,734.24 and 6,822.18 is: 9,413.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127.68 : 16,734.24 = 6,822.18 : x
  2. Step 2: Convert to fraction form
    12,127.68/16,734.24 = 6,822.18/x
  3. Step 3: Cross multiply
    12,127.68x = 16,734.24 × 6,822.18
  4. Step 4: Simplify right side
    12,127.68x = 114,163,997.44
  5. Step 5: Solve for x
    x = 114,163,997.44/12,127.68
  6. Step 6: Final answer
    x = 9,413.51

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Half scale
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Double scale
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Similar ratio
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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.