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Finding the Fourth Proportional to 11,553.70, 17,318.40 and 6,612.70

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Solution

The fourth proportional to 11,553.70, 17,318.40 and 6,612.70 is: 9,912.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,553.70 : 17,318.40 = 6,612.70 : x
  2. Step 2: Convert to fraction form
    11,553.70/17,318.40 = 6,612.70/x
  3. Step 3: Cross multiply
    11,553.70x = 17,318.40 × 6,612.70
  4. Step 4: Simplify right side
    11,553.70x = 114,521,383.68
  5. Step 5: Solve for x
    x = 114,521,383.68/11,553.70
  6. Step 6: Final answer
    x = 9,912.10

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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.