Home / 13,460.25-20,190.56-4,226.25

Finding the Fourth Proportional to 13,460.25, 20,190.56 and 4,226.25

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Solution

The fourth proportional to 13,460.25, 20,190.56 and 4,226.25 is: 6,339.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,460.25 : 20,190.56 = 4,226.25 : x
  2. Step 2: Convert to fraction form
    13,460.25/20,190.56 = 4,226.25/x
  3. Step 3: Cross multiply
    13,460.25x = 20,190.56 × 4,226.25
  4. Step 4: Simplify right side
    13,460.25x = 85,330,333.07
  5. Step 5: Solve for x
    x = 85,330,333.07/13,460.25
  6. Step 6: Final answer
    x = 6,339.43

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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.