Home / 13,137.85-19,709.91-4,372.84

Finding the Fourth Proportional to 13,137.85, 19,709.91 and 4,372.84

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Solution

The fourth proportional to 13,137.85, 19,709.91 and 4,372.84 is: 6,560.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,137.85 : 19,709.91 = 4,372.84 : x
  2. Step 2: Convert to fraction form
    13,137.85/19,709.91 = 4,372.84/x
  3. Step 3: Cross multiply
    13,137.85x = 19,709.91 × 4,372.84
  4. Step 4: Simplify right side
    13,137.85x = 86,188,282.84
  5. Step 5: Solve for x
    x = 86,188,282.84/13,137.85
  6. Step 6: Final answer
    x = 6,560.30

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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.