Home / 8,119.10-12,170.27-4,420.33

Finding the Fourth Proportional to 8,119.10, 12,170.27 and 4,420.33

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Solution

The fourth proportional to 8,119.10, 12,170.27 and 4,420.33 is: 6,625.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.10 : 12,170.27 = 4,420.33 : x
  2. Step 2: Convert to fraction form
    8,119.10/12,170.27 = 4,420.33/x
  3. Step 3: Cross multiply
    8,119.10x = 12,170.27 × 4,420.33
  4. Step 4: Simplify right side
    8,119.10x = 53,796,590.21
  5. Step 5: Solve for x
    x = 53,796,590.21/8,119.10
  6. Step 6: Final answer
    x = 6,625.93

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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.