Home / 15,103.23-20,841.31-8,388.28

Finding the Fourth Proportional to 15,103.23, 20,841.31 and 8,388.28

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Solution

The fourth proportional to 15,103.23, 20,841.31 and 8,388.28 is: 11,575.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,103.23 : 20,841.31 = 8,388.28 : x
  2. Step 2: Convert to fraction form
    15,103.23/20,841.31 = 8,388.28/x
  3. Step 3: Cross multiply
    15,103.23x = 20,841.31 × 8,388.28
  4. Step 4: Simplify right side
    15,103.23x = 174,822,850.80
  5. Step 5: Solve for x
    x = 174,822,850.80/15,103.23
  6. Step 6: Final answer
    x = 11,575.20

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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.