Home / 15,997.60-22,078.40-8,926.48

Finding the Fourth Proportional to 15,997.60, 22,078.40 and 8,926.48

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Solution

The fourth proportional to 15,997.60, 22,078.40 and 8,926.48 is: 12,319.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,997.60 : 22,078.40 = 8,926.48 : x
  2. Step 2: Convert to fraction form
    15,997.60/22,078.40 = 8,926.48/x
  3. Step 3: Cross multiply
    15,997.60x = 22,078.40 × 8,926.48
  4. Step 4: Simplify right side
    15,997.60x = 197,082,241.01
  5. Step 5: Solve for x
    x = 197,082,241.01/15,997.60
  6. Step 6: Final answer
    x = 12,319.49

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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.