Home / 15,414.22-21,270.62-8,698.93

Finding the Fourth Proportional to 15,414.22, 21,270.62 and 8,698.93

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Solution

The fourth proportional to 15,414.22, 21,270.62 and 8,698.93 is: 12,003.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,414.22 : 21,270.62 = 8,698.93 : x
  2. Step 2: Convert to fraction form
    15,414.22/21,270.62 = 8,698.93/x
  3. Step 3: Cross multiply
    15,414.22x = 21,270.62 × 8,698.93
  4. Step 4: Simplify right side
    15,414.22x = 185,031,634.64
  5. Step 5: Solve for x
    x = 185,031,634.64/15,414.22
  6. Step 6: Final answer
    x = 12,003.96

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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.