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Finding the Fourth Proportional to 8,486.95, 12,730.52 and 2,563.89

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Solution

The fourth proportional to 8,486.95, 12,730.52 and 2,563.89 is: 3,845.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,486.95 : 12,730.52 = 2,563.89 : x
  2. Step 2: Convert to fraction form
    8,486.95/12,730.52 = 2,563.89/x
  3. Step 3: Cross multiply
    8,486.95x = 12,730.52 × 2,563.89
  4. Step 4: Simplify right side
    8,486.95x = 32,639,602.63
  5. Step 5: Solve for x
    x = 32,639,602.63/8,486.95
  6. Step 6: Final answer
    x = 3,845.86

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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.