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Finding the Fourth Proportional to 11,553.70, 17,330.55 and 5,721.70

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Solution

The fourth proportional to 11,553.70, 17,330.55 and 5,721.70 is: 8,582.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,553.70 : 17,330.55 = 5,721.70 : x
  2. Step 2: Convert to fraction form
    11,553.70/17,330.55 = 5,721.70/x
  3. Step 3: Cross multiply
    11,553.70x = 17,330.55 × 5,721.70
  4. Step 4: Simplify right side
    11,553.70x = 99,160,207.94
  5. Step 5: Solve for x
    x = 99,160,207.94/11,553.70
  6. Step 6: Final answer
    x = 8,582.55

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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.