Home / 13,475.88-20,218.68-4,712.09

Finding the Fourth Proportional to 13,475.88, 20,218.68 and 4,712.09

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Solution

The fourth proportional to 13,475.88, 20,218.68 and 4,712.09 is: 7,069.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,475.88 : 20,218.68 = 4,712.09 : x
  2. Step 2: Convert to fraction form
    13,475.88/20,218.68 = 4,712.09/x
  3. Step 3: Cross multiply
    13,475.88x = 20,218.68 × 4,712.09
  4. Step 4: Simplify right side
    13,475.88x = 95,272,138.75
  5. Step 5: Solve for x
    x = 95,272,138.75/13,475.88
  6. Step 6: Final answer
    x = 7,069.83

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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.