Home / 12,528.56-17,261.52-8,272

Finding the Fourth Proportional to 12,528.56, 17,261.52 and 8,272

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Solution

The fourth proportional to 12,528.56, 17,261.52 and 8,272 is: 11,396.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.56 : 17,261.52 = 8,272 : x
  2. Step 2: Convert to fraction form
    12,528.56/17,261.52 = 8,272/x
  3. Step 3: Cross multiply
    12,528.56x = 17,261.52 × 8,272
  4. Step 4: Simplify right side
    12,528.56x = 142,787,293.44
  5. Step 5: Solve for x
    x = 142,787,293.44/12,528.56
  6. Step 6: Final answer
    x = 11,396.94

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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.