Home / 8,670.97-12,986.54-5,508.18

Finding the Fourth Proportional to 8,670.97, 12,986.54 and 5,508.18

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Solution

The fourth proportional to 8,670.97, 12,986.54 and 5,508.18 is: 8,249.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,670.97 : 12,986.54 = 5,508.18 : x
  2. Step 2: Convert to fraction form
    8,670.97/12,986.54 = 5,508.18/x
  3. Step 3: Cross multiply
    8,670.97x = 12,986.54 × 5,508.18
  4. Step 4: Simplify right side
    8,670.97x = 71,532,164.23
  5. Step 5: Solve for x
    x = 71,532,164.23/8,670.97
  6. Step 6: Final answer
    x = 8,249.61

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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.