Home / 19,086.52-28,634.36-7,987.04

Finding the Fourth Proportional to 19,086.52, 28,634.36 and 7,987.04

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Solution

The fourth proportional to 19,086.52, 28,634.36 and 7,987.04 is: 11,982.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,086.52 : 28,634.36 = 7,987.04 : x
  2. Step 2: Convert to fraction form
    19,086.52/28,634.36 = 7,987.04/x
  3. Step 3: Cross multiply
    19,086.52x = 28,634.36 × 7,987.04
  4. Step 4: Simplify right side
    19,086.52x = 228,703,778.69
  5. Step 5: Solve for x
    x = 228,703,778.69/19,086.52
  6. Step 6: Final answer
    x = 11,982.48

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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.