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Finding the Fourth Proportional to 12,127.93, 16,735.28 and 6,822.29

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Solution

The fourth proportional to 12,127.93, 16,735.28 and 6,822.29 is: 9,414.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127.93 : 16,735.28 = 6,822.29 : x
  2. Step 2: Convert to fraction form
    12,127.93/16,735.28 = 6,822.29/x
  3. Step 3: Cross multiply
    12,127.93x = 16,735.28 × 6,822.29
  4. Step 4: Simplify right side
    12,127.93x = 114,172,941.12
  5. Step 5: Solve for x
    x = 114,172,941.12/12,127.93
  6. Step 6: Final answer
    x = 9,414.05

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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.