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Finding the Fourth Proportional to 8,708.49, 13,059.36 and 3,160.49

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Solution

The fourth proportional to 8,708.49, 13,059.36 and 3,160.49 is: 4,739.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.49 : 13,059.36 = 3,160.49 : x
  2. Step 2: Convert to fraction form
    8,708.49/13,059.36 = 3,160.49/x
  3. Step 3: Cross multiply
    8,708.49x = 13,059.36 × 3,160.49
  4. Step 4: Simplify right side
    8,708.49x = 41,273,911.39
  5. Step 5: Solve for x
    x = 41,273,911.39/8,708.49
  6. Step 6: Final answer
    x = 4,739.50

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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.