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Finding the Fourth Proportional to 8,650.59, 12,971.78 and 4,486.43

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Solution

The fourth proportional to 8,650.59, 12,971.78 and 4,486.43 is: 6,727.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,650.59 : 12,971.78 = 4,486.43 : x
  2. Step 2: Convert to fraction form
    8,650.59/12,971.78 = 4,486.43/x
  3. Step 3: Cross multiply
    8,650.59x = 12,971.78 × 4,486.43
  4. Step 4: Simplify right side
    8,650.59x = 58,197,026.59
  5. Step 5: Solve for x
    x = 58,197,026.59/8,650.59
  6. Step 6: Final answer
    x = 6,727.52

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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.