Home / 12,448.26-17,180.96-7,415.42

Finding the Fourth Proportional to 12,448.26, 17,180.96 and 7,415.42

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Solution

The fourth proportional to 12,448.26, 17,180.96 and 7,415.42 is: 10,234.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,448.26 : 17,180.96 = 7,415.42 : x
  2. Step 2: Convert to fraction form
    12,448.26/17,180.96 = 7,415.42/x
  3. Step 3: Cross multiply
    12,448.26x = 17,180.96 × 7,415.42
  4. Step 4: Simplify right side
    12,448.26x = 127,403,911.42
  5. Step 5: Solve for x
    x = 127,403,911.42/12,448.26
  6. Step 6: Final answer
    x = 10,234.68

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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.