Home / 15,997.91-22,078.83-8,926.79

Finding the Fourth Proportional to 15,997.91, 22,078.83 and 8,926.79

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Solution

The fourth proportional to 15,997.91, 22,078.83 and 8,926.79 is: 12,319.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,997.91 : 22,078.83 = 8,926.79 : x
  2. Step 2: Convert to fraction form
    15,997.91/22,078.83 = 8,926.79/x
  3. Step 3: Cross multiply
    15,997.91x = 22,078.83 × 8,926.79
  4. Step 4: Simplify right side
    15,997.91x = 197,092,968.46
  5. Step 5: Solve for x
    x = 197,092,968.46/15,997.91
  6. Step 6: Final answer
    x = 12,319.92

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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.