Home / 8,119.88-12,160.66-6,352.51

Finding the Fourth Proportional to 8,119.88, 12,160.66 and 6,352.51

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Solution

The fourth proportional to 8,119.88, 12,160.66 and 6,352.51 is: 9,513.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.88 : 12,160.66 = 6,352.51 : x
  2. Step 2: Convert to fraction form
    8,119.88/12,160.66 = 6,352.51/x
  3. Step 3: Cross multiply
    8,119.88x = 12,160.66 × 6,352.51
  4. Step 4: Simplify right side
    8,119.88x = 77,250,714.26
  5. Step 5: Solve for x
    x = 77,250,714.26/8,119.88
  6. Step 6: Final answer
    x = 9,513.78

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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.