Home / 11,555.17-17,333.97-3,658.78

Finding the Fourth Proportional to 11,555.17, 17,333.97 and 3,658.78

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Solution

The fourth proportional to 11,555.17, 17,333.97 and 3,658.78 is: 5,488.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,555.17 : 17,333.97 = 3,658.78 : x
  2. Step 2: Convert to fraction form
    11,555.17/17,333.97 = 3,658.78/x
  3. Step 3: Cross multiply
    11,555.17x = 17,333.97 × 3,658.78
  4. Step 4: Simplify right side
    11,555.17x = 63,421,096.09
  5. Step 5: Solve for x
    x = 63,421,096.09/11,555.17
  6. Step 6: Final answer
    x = 5,488.55

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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.