Home / 15,499.44-21,388.41-8,425.83

Finding the Fourth Proportional to 15,499.44, 21,388.41 and 8,425.83

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Solution

The fourth proportional to 15,499.44, 21,388.41 and 8,425.83 is: 11,627.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,499.44 : 21,388.41 = 8,425.83 : x
  2. Step 2: Convert to fraction form
    15,499.44/21,388.41 = 8,425.83/x
  3. Step 3: Cross multiply
    15,499.44x = 21,388.41 × 8,425.83
  4. Step 4: Simplify right side
    15,499.44x = 180,215,106.63
  5. Step 5: Solve for x
    x = 180,215,106.63/15,499.44
  6. Step 6: Final answer
    x = 11,627.20

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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.