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Finding the Fourth Proportional to 11,818.98, 17,728.47 and 2,934.29

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Solution

The fourth proportional to 11,818.98, 17,728.47 and 2,934.29 is: 4,401.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.98 : 17,728.47 = 2,934.29 : x
  2. Step 2: Convert to fraction form
    11,818.98/17,728.47 = 2,934.29/x
  3. Step 3: Cross multiply
    11,818.98x = 17,728.47 × 2,934.29
  4. Step 4: Simplify right side
    11,818.98x = 52,020,516.56
  5. Step 5: Solve for x
    x = 52,020,516.56/11,818.98
  6. Step 6: Final answer
    x = 4,401.44

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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.