Home / 8,270.40-11,403.12-6,170.88

Finding the Fourth Proportional to 8,270.40, 11,403.12 and 6,170.88

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Solution

The fourth proportional to 8,270.40, 11,403.12 and 6,170.88 is: 8,508.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,270.40 : 11,403.12 = 6,170.88 : x
  2. Step 2: Convert to fraction form
    8,270.40/11,403.12 = 6,170.88/x
  3. Step 3: Cross multiply
    8,270.40x = 11,403.12 × 6,170.88
  4. Step 4: Simplify right side
    8,270.40x = 70,367,285.15
  5. Step 5: Solve for x
    x = 70,367,285.15/8,270.40
  6. Step 6: Final answer
    x = 8,508.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.