Home / 13,410.03-20,115.05-4,176.75

Finding the Fourth Proportional to 13,410.03, 20,115.05 and 4,176.75

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Solution

The fourth proportional to 13,410.03, 20,115.05 and 4,176.75 is: 6,265.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.03 : 20,115.05 = 4,176.75 : x
  2. Step 2: Convert to fraction form
    13,410.03/20,115.05 = 4,176.75/x
  3. Step 3: Cross multiply
    13,410.03x = 20,115.05 × 4,176.75
  4. Step 4: Simplify right side
    13,410.03x = 84,015,514.20
  5. Step 5: Solve for x
    x = 84,015,514.20/13,410.03
  6. Step 6: Final answer
    x = 6,265.13

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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.