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Finding the Fourth Proportional to 8,409.01, 12,615.17 and 2,486.00

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Solution

The fourth proportional to 8,409.01, 12,615.17 and 2,486.00 is: 3,729.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,409.01 : 12,615.17 = 2,486.00 : x
  2. Step 2: Convert to fraction form
    8,409.01/12,615.17 = 2,486.00/x
  3. Step 3: Cross multiply
    8,409.01x = 12,615.17 × 2,486.00
  4. Step 4: Simplify right side
    8,409.01x = 31,361,237.11
  5. Step 5: Solve for x
    x = 31,361,237.11/8,409.01
  6. Step 6: Final answer
    x = 3,729.48

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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.