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Finding the Fourth Proportional to 8,610.63, 12,918.12 and 2,454.63

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Solution

The fourth proportional to 8,610.63, 12,918.12 and 2,454.63 is: 3,682.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,610.63 : 12,918.12 = 2,454.63 : x
  2. Step 2: Convert to fraction form
    8,610.63/12,918.12 = 2,454.63/x
  3. Step 3: Cross multiply
    8,610.63x = 12,918.12 × 2,454.63
  4. Step 4: Simplify right side
    8,610.63x = 31,709,204.90
  5. Step 5: Solve for x
    x = 31,709,204.90/8,610.63
  6. Step 6: Final answer
    x = 3,682.57

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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.