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Finding the Fourth Proportional to 8,706, 13,048.05 and 6,245.64

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Solution

The fourth proportional to 8,706, 13,048.05 and 6,245.64 is: 9,360.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706 : 13,048.05 = 6,245.64 : x
  2. Step 2: Convert to fraction form
    8,706/13,048.05 = 6,245.64/x
  3. Step 3: Cross multiply
    8,706x = 13,048.05 × 6,245.64
  4. Step 4: Simplify right side
    8,706x = 81,493,423.00
  5. Step 5: Solve for x
    x = 81,493,423.00/8,706
  6. Step 6: Final answer
    x = 9,360.60

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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.