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Finding the Fourth Proportional to 12,356.38, 17,051.70 and 6,767.38

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Solution

The fourth proportional to 12,356.38, 17,051.70 and 6,767.38 is: 9,338.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.38 : 17,051.70 = 6,767.38 : x
  2. Step 2: Convert to fraction form
    12,356.38/17,051.70 = 6,767.38/x
  3. Step 3: Cross multiply
    12,356.38x = 17,051.70 × 6,767.38
  4. Step 4: Simplify right side
    12,356.38x = 115,395,333.55
  5. Step 5: Solve for x
    x = 115,395,333.55/12,356.38
  6. Step 6: Final answer
    x = 9,338.93

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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.