Home / 15,739.78-23,611.40-5,205.96

Finding the Fourth Proportional to 15,739.78, 23,611.40 and 5,205.96

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Solution

The fourth proportional to 15,739.78, 23,611.40 and 5,205.96 is: 7,809.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,739.78 : 23,611.40 = 5,205.96 : x
  2. Step 2: Convert to fraction form
    15,739.78/23,611.40 = 5,205.96/x
  3. Step 3: Cross multiply
    15,739.78x = 23,611.40 × 5,205.96
  4. Step 4: Simplify right side
    15,739.78x = 122,919,977.91
  5. Step 5: Solve for x
    x = 122,919,977.91/15,739.78
  6. Step 6: Final answer
    x = 7,809.51

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.