Home / 8,119.62-12,147.39-6,256.62

Finding the Fourth Proportional to 8,119.62, 12,147.39 and 6,256.62

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Solution

The fourth proportional to 8,119.62, 12,147.39 and 6,256.62 is: 9,360.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.62 : 12,147.39 = 6,256.62 : x
  2. Step 2: Convert to fraction form
    8,119.62/12,147.39 = 6,256.62/x
  3. Step 3: Cross multiply
    8,119.62x = 12,147.39 × 6,256.62
  4. Step 4: Simplify right side
    8,119.62x = 76,001,603.22
  5. Step 5: Solve for x
    x = 76,001,603.22/8,119.62
  6. Step 6: Final answer
    x = 9,360.24

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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.