Home / 11,930.10-17,897.55-4,137.30

Finding the Fourth Proportional to 11,930.10, 17,897.55 and 4,137.30

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Solution

The fourth proportional to 11,930.10, 17,897.55 and 4,137.30 is: 6,206.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,930.10 : 17,897.55 = 4,137.30 : x
  2. Step 2: Convert to fraction form
    11,930.10/17,897.55 = 4,137.30/x
  3. Step 3: Cross multiply
    11,930.10x = 17,897.55 × 4,137.30
  4. Step 4: Simplify right side
    11,930.10x = 74,047,533.62
  5. Step 5: Solve for x
    x = 74,047,533.62/11,930.10
  6. Step 6: Final answer
    x = 6,206.78

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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.