Home / 13,508.20-20,271.15-6,112.73

Finding the Fourth Proportional to 13,508.20, 20,271.15 and 6,112.73

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Solution

The fourth proportional to 13,508.20, 20,271.15 and 6,112.73 is: 9,173.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508.20 : 20,271.15 = 6,112.73 : x
  2. Step 2: Convert to fraction form
    13,508.20/20,271.15 = 6,112.73/x
  3. Step 3: Cross multiply
    13,508.20x = 20,271.15 × 6,112.73
  4. Step 4: Simplify right side
    13,508.20x = 123,912,066.74
  5. Step 5: Solve for x
    x = 123,912,066.74/13,508.20
  6. Step 6: Final answer
    x = 9,173.10

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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.