Home / 13,427.20-20,144.82-4,662.16

Finding the Fourth Proportional to 13,427.20, 20,144.82 and 4,662.16

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Solution

The fourth proportional to 13,427.20, 20,144.82 and 4,662.16 is: 6,994.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.20 : 20,144.82 = 4,662.16 : x
  2. Step 2: Convert to fraction form
    13,427.20/20,144.82 = 4,662.16/x
  3. Step 3: Cross multiply
    13,427.20x = 20,144.82 × 4,662.16
  4. Step 4: Simplify right side
    13,427.20x = 93,918,374.01
  5. Step 5: Solve for x
    x = 93,918,374.01/13,427.20
  6. Step 6: Final answer
    x = 6,994.64

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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.