Home / 13,992.62-20,988.21-5,226.86

Finding the Fourth Proportional to 13,992.62, 20,988.21 and 5,226.86

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Solution

The fourth proportional to 13,992.62, 20,988.21 and 5,226.86 is: 7,840.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,992.62 : 20,988.21 = 5,226.86 : x
  2. Step 2: Convert to fraction form
    13,992.62/20,988.21 = 5,226.86/x
  3. Step 3: Cross multiply
    13,992.62x = 20,988.21 × 5,226.86
  4. Step 4: Simplify right side
    13,992.62x = 109,702,507.39
  5. Step 5: Solve for x
    x = 109,702,507.39/13,992.62
  6. Step 6: Final answer
    x = 7,840.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.