Home / 11,207.14-16,810.74-3,415.78

Finding the Fourth Proportional to 11,207.14, 16,810.74 and 3,415.78

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Solution

The fourth proportional to 11,207.14, 16,810.74 and 3,415.78 is: 5,123.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,207.14 : 16,810.74 = 3,415.78 : x
  2. Step 2: Convert to fraction form
    11,207.14/16,810.74 = 3,415.78/x
  3. Step 3: Cross multiply
    11,207.14x = 16,810.74 × 3,415.78
  4. Step 4: Simplify right side
    11,207.14x = 57,421,789.48
  5. Step 5: Solve for x
    x = 57,421,789.48/11,207.14
  6. Step 6: Final answer
    x = 5,123.68

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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.