Home / 15,103.32-20,843.28-8,388.99

Finding the Fourth Proportional to 15,103.32, 20,843.28 and 8,388.99

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Solution

The fourth proportional to 15,103.32, 20,843.28 and 8,388.99 is: 11,577.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,103.32 : 20,843.28 = 8,388.99 : x
  2. Step 2: Convert to fraction form
    15,103.32/20,843.28 = 8,388.99/x
  3. Step 3: Cross multiply
    15,103.32x = 20,843.28 × 8,388.99
  4. Step 4: Simplify right side
    15,103.32x = 174,854,067.49
  5. Step 5: Solve for x
    x = 174,854,067.49/15,103.32
  6. Step 6: Final answer
    x = 11,577.19

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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.