Home / 8,191.83-12,291.75-3,812.34

Finding the Fourth Proportional to 8,191.83, 12,291.75 and 3,812.34

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Solution

The fourth proportional to 8,191.83, 12,291.75 and 3,812.34 is: 5,720.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,191.83 : 12,291.75 = 3,812.34 : x
  2. Step 2: Convert to fraction form
    8,191.83/12,291.75 = 3,812.34/x
  3. Step 3: Cross multiply
    8,191.83x = 12,291.75 × 3,812.34
  4. Step 4: Simplify right side
    8,191.83x = 46,860,330.20
  5. Step 5: Solve for x
    x = 46,860,330.20/8,191.83
  6. Step 6: Final answer
    x = 5,720.37

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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.