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Finding the Fourth Proportional to 8,143.50, 12,208.01 and 2,948.22

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Solution

The fourth proportional to 8,143.50, 12,208.01 and 2,948.22 is: 4,419.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143.50 : 12,208.01 = 2,948.22 : x
  2. Step 2: Convert to fraction form
    8,143.50/12,208.01 = 2,948.22/x
  3. Step 3: Cross multiply
    8,143.50x = 12,208.01 × 2,948.22
  4. Step 4: Simplify right side
    8,143.50x = 35,991,899.24
  5. Step 5: Solve for x
    x = 35,991,899.24/8,143.50
  6. Step 6: Final answer
    x = 4,419.71

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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.