Home / 11,724.72-17,587.44-5,147.52

Finding the Fourth Proportional to 11,724.72, 17,587.44 and 5,147.52

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Solution

The fourth proportional to 11,724.72, 17,587.44 and 5,147.52 is: 7,721.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,724.72 : 17,587.44 = 5,147.52 : x
  2. Step 2: Convert to fraction form
    11,724.72/17,587.44 = 5,147.52/x
  3. Step 3: Cross multiply
    11,724.72x = 17,587.44 × 5,147.52
  4. Step 4: Simplify right side
    11,724.72x = 90,531,699.15
  5. Step 5: Solve for x
    x = 90,531,699.15/11,724.72
  6. Step 6: Final answer
    x = 7,721.44

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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.