Home / 8,119.20-12,173.86-3,182.93

Finding the Fourth Proportional to 8,119.20, 12,173.86 and 3,182.93

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Solution

The fourth proportional to 8,119.20, 12,173.86 and 3,182.93 is: 4,772.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.20 : 12,173.86 = 3,182.93 : x
  2. Step 2: Convert to fraction form
    8,119.20/12,173.86 = 3,182.93/x
  3. Step 3: Cross multiply
    8,119.20x = 12,173.86 × 3,182.93
  4. Step 4: Simplify right side
    8,119.20x = 38,748,544.21
  5. Step 5: Solve for x
    x = 38,748,544.21/8,119.20
  6. Step 6: Final answer
    x = 4,772.46

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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.