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Finding the Fourth Proportional to 8,029.68, 12,049.36 and 3,099.72

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Solution

The fourth proportional to 8,029.68, 12,049.36 and 3,099.72 is: 4,651.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,029.68 : 12,049.36 = 3,099.72 : x
  2. Step 2: Convert to fraction form
    8,029.68/12,049.36 = 3,099.72/x
  3. Step 3: Cross multiply
    8,029.68x = 12,049.36 × 3,099.72
  4. Step 4: Simplify right side
    8,029.68x = 37,349,642.18
  5. Step 5: Solve for x
    x = 37,349,642.18/8,029.68
  6. Step 6: Final answer
    x = 4,651.45

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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.