Home / 8,149.02-12,221.64-2,602.86

Finding the Fourth Proportional to 8,149.02, 12,221.64 and 2,602.86

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Solution

The fourth proportional to 8,149.02, 12,221.64 and 2,602.86 is: 3,903.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,149.02 : 12,221.64 = 2,602.86 : x
  2. Step 2: Convert to fraction form
    8,149.02/12,221.64 = 2,602.86/x
  3. Step 3: Cross multiply
    8,149.02x = 12,221.64 × 2,602.86
  4. Step 4: Simplify right side
    8,149.02x = 31,811,217.89
  5. Step 5: Solve for x
    x = 31,811,217.89/8,149.02
  6. Step 6: Final answer
    x = 3,903.69

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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.