Home / 13,475.20-20,181.36-13,008.16

Finding the Fourth Proportional to 13,475.20, 20,181.36 and 13,008.16

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Solution

The fourth proportional to 13,475.20, 20,181.36 and 13,008.16 is: 19,481.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,475.20 : 20,181.36 = 13,008.16 : x
  2. Step 2: Convert to fraction form
    13,475.20/20,181.36 = 13,008.16/x
  3. Step 3: Cross multiply
    13,475.20x = 20,181.36 × 13,008.16
  4. Step 4: Simplify right side
    13,475.20x = 262,522,359.90
  5. Step 5: Solve for x
    x = 262,522,359.90/13,475.20
  6. Step 6: Final answer
    x = 19,481.89

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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.