Home / 11,840.12-17,758.60-3,519.98

Finding the Fourth Proportional to 11,840.12, 17,758.60 and 3,519.98

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Solution

The fourth proportional to 11,840.12, 17,758.60 and 3,519.98 is: 5,279.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,840.12 : 17,758.60 = 3,519.98 : x
  2. Step 2: Convert to fraction form
    11,840.12/17,758.60 = 3,519.98/x
  3. Step 3: Cross multiply
    11,840.12x = 17,758.60 × 3,519.98
  4. Step 4: Simplify right side
    11,840.12x = 62,509,916.83
  5. Step 5: Solve for x
    x = 62,509,916.83/11,840.12
  6. Step 6: Final answer
    x = 5,279.50

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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.