Home / 13,460.75-20,191.31-4,226.75

Finding the Fourth Proportional to 13,460.75, 20,191.31 and 4,226.75

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Solution

The fourth proportional to 13,460.75, 20,191.31 and 4,226.75 is: 6,340.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,460.75 : 20,191.31 = 4,226.75 : x
  2. Step 2: Convert to fraction form
    13,460.75/20,191.31 = 4,226.75/x
  3. Step 3: Cross multiply
    13,460.75x = 20,191.31 × 4,226.75
  4. Step 4: Simplify right side
    13,460.75x = 85,343,619.54
  5. Step 5: Solve for x
    x = 85,343,619.54/13,460.75
  6. Step 6: Final answer
    x = 6,340.18

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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.