Home / 13,157.88-19,734.40-5,760.96

Finding the Fourth Proportional to 13,157.88, 19,734.40 and 5,760.96

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Solution

The fourth proportional to 13,157.88, 19,734.40 and 5,760.96 is: 8,640.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,157.88 : 19,734.40 = 5,760.96 : x
  2. Step 2: Convert to fraction form
    13,157.88/19,734.40 = 5,760.96/x
  3. Step 3: Cross multiply
    13,157.88x = 19,734.40 × 5,760.96
  4. Step 4: Simplify right side
    13,157.88x = 113,689,089.02
  5. Step 5: Solve for x
    x = 113,689,089.02/13,157.88
  6. Step 6: Final answer
    x = 8,640.38

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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.