Home / 13,840.84-20,759.03-3,977.87

Finding the Fourth Proportional to 13,840.84, 20,759.03 and 3,977.87

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Solution

The fourth proportional to 13,840.84, 20,759.03 and 3,977.87 is: 5,966.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.84 : 20,759.03 = 3,977.87 : x
  2. Step 2: Convert to fraction form
    13,840.84/20,759.03 = 3,977.87/x
  3. Step 3: Cross multiply
    13,840.84x = 20,759.03 × 3,977.87
  4. Step 4: Simplify right side
    13,840.84x = 82,576,722.67
  5. Step 5: Solve for x
    x = 82,576,722.67/13,840.84
  6. Step 6: Final answer
    x = 5,966.16

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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.