Home / 12,442.12-17,169.94-7,136.82

Finding the Fourth Proportional to 12,442.12, 17,169.94 and 7,136.82

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Solution

The fourth proportional to 12,442.12, 17,169.94 and 7,136.82 is: 9,848.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,442.12 : 17,169.94 = 7,136.82 : x
  2. Step 2: Convert to fraction form
    12,442.12/17,169.94 = 7,136.82/x
  3. Step 3: Cross multiply
    12,442.12x = 17,169.94 × 7,136.82
  4. Step 4: Simplify right side
    12,442.12x = 122,538,771.19
  5. Step 5: Solve for x
    x = 122,538,771.19/12,442.12
  6. Step 6: Final answer
    x = 9,848.71

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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.