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Finding the Fourth Proportional to 8,167.23, 12,245.99 and 4,878.23

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Solution

The fourth proportional to 8,167.23, 12,245.99 and 4,878.23 is: 7,314.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,167.23 : 12,245.99 = 4,878.23 : x
  2. Step 2: Convert to fraction form
    8,167.23/12,245.99 = 4,878.23/x
  3. Step 3: Cross multiply
    8,167.23x = 12,245.99 × 4,878.23
  4. Step 4: Simplify right side
    8,167.23x = 59,738,670.18
  5. Step 5: Solve for x
    x = 59,738,670.18/8,167.23
  6. Step 6: Final answer
    x = 7,314.43

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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.