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Finding the Fourth Proportional to 12,335.42, 18,494.93 and 6,791.38

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Solution

The fourth proportional to 12,335.42, 18,494.93 and 6,791.38 is: 10,182.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,335.42 : 18,494.93 = 6,791.38 : x
  2. Step 2: Convert to fraction form
    12,335.42/18,494.93 = 6,791.38/x
  3. Step 3: Cross multiply
    12,335.42x = 18,494.93 × 6,791.38
  4. Step 4: Simplify right side
    12,335.42x = 125,606,068.44
  5. Step 5: Solve for x
    x = 125,606,068.44/12,335.42
  6. Step 6: Final answer
    x = 10,182.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.