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Finding the Fourth Proportional to 12,735.15, 17,555.94 and 8,946.96

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Solution

The fourth proportional to 12,735.15, 17,555.94 and 8,946.96 is: 12,333.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,735.15 : 17,555.94 = 8,946.96 : x
  2. Step 2: Convert to fraction form
    12,735.15/17,555.94 = 8,946.96/x
  3. Step 3: Cross multiply
    12,735.15x = 17,555.94 × 8,946.96
  4. Step 4: Simplify right side
    12,735.15x = 157,072,292.94
  5. Step 5: Solve for x
    x = 157,072,292.94/12,735.15
  6. Step 6: Final answer
    x = 12,333.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.