Home / 13,965.72-20,948.59-4,105.01

Finding the Fourth Proportional to 13,965.72, 20,948.59 and 4,105.01

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Solution

The fourth proportional to 13,965.72, 20,948.59 and 4,105.01 is: 6,157.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.72 : 20,948.59 = 4,105.01 : x
  2. Step 2: Convert to fraction form
    13,965.72/20,948.59 = 4,105.01/x
  3. Step 3: Cross multiply
    13,965.72x = 20,948.59 × 4,105.01
  4. Step 4: Simplify right side
    13,965.72x = 85,994,228.94
  5. Step 5: Solve for x
    x = 85,994,228.94/13,965.72
  6. Step 6: Final answer
    x = 6,157.52

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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.