Home / 13,452.21-20,181.69-7,910.19

Finding the Fourth Proportional to 13,452.21, 20,181.69 and 7,910.19

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Solution

The fourth proportional to 13,452.21, 20,181.69 and 7,910.19 is: 11,867.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,452.21 : 20,181.69 = 7,910.19 : x
  2. Step 2: Convert to fraction form
    13,452.21/20,181.69 = 7,910.19/x
  3. Step 3: Cross multiply
    13,452.21x = 20,181.69 × 7,910.19
  4. Step 4: Simplify right side
    13,452.21x = 159,641,002.42
  5. Step 5: Solve for x
    x = 159,641,002.42/13,452.21
  6. Step 6: Final answer
    x = 11,867.27

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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.