Home / 8,108.56-12,164.19-4,986.55

Finding the Fourth Proportional to 8,108.56, 12,164.19 and 4,986.55

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Solution

The fourth proportional to 8,108.56, 12,164.19 and 4,986.55 is: 7,480.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.56 : 12,164.19 = 4,986.55 : x
  2. Step 2: Convert to fraction form
    8,108.56/12,164.19 = 4,986.55/x
  3. Step 3: Cross multiply
    8,108.56x = 12,164.19 × 4,986.55
  4. Step 4: Simplify right side
    8,108.56x = 60,657,341.64
  5. Step 5: Solve for x
    x = 60,657,341.64/8,108.56
  6. Step 6: Final answer
    x = 7,480.66

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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.