Home / 13,115.72-19,683.93-5,725.37

Finding the Fourth Proportional to 13,115.72, 19,683.93 and 5,725.37

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Solution

The fourth proportional to 13,115.72, 19,683.93 and 5,725.37 is: 8,592.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.72 : 19,683.93 = 5,725.37 : x
  2. Step 2: Convert to fraction form
    13,115.72/19,683.93 = 5,725.37/x
  3. Step 3: Cross multiply
    13,115.72x = 19,683.93 × 5,725.37
  4. Step 4: Simplify right side
    13,115.72x = 112,697,683.88
  5. Step 5: Solve for x
    x = 112,697,683.88/13,115.72
  6. Step 6: Final answer
    x = 8,592.57

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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.