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Finding the Fourth Proportional to 8,147.89, 12,220.23 and 2,599.74

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Solution

The fourth proportional to 8,147.89, 12,220.23 and 2,599.74 is: 3,899.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.89 : 12,220.23 = 2,599.74 : x
  2. Step 2: Convert to fraction form
    8,147.89/12,220.23 = 2,599.74/x
  3. Step 3: Cross multiply
    8,147.89x = 12,220.23 × 2,599.74
  4. Step 4: Simplify right side
    8,147.89x = 31,769,430.49
  5. Step 5: Solve for x
    x = 31,769,430.49/8,147.89
  6. Step 6: Final answer
    x = 3,899.10

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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.