Home / 8,173.85-12,261.58-3,792.56

Finding the Fourth Proportional to 8,173.85, 12,261.58 and 3,792.56

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Solution

The fourth proportional to 8,173.85, 12,261.58 and 3,792.56 is: 5,689.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,173.85 : 12,261.58 = 3,792.56 : x
  2. Step 2: Convert to fraction form
    8,173.85/12,261.58 = 3,792.56/x
  3. Step 3: Cross multiply
    8,173.85x = 12,261.58 × 3,792.56
  4. Step 4: Simplify right side
    8,173.85x = 46,502,707.06
  5. Step 5: Solve for x
    x = 46,502,707.06/8,173.85
  6. Step 6: Final answer
    x = 5,689.21

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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.