Home / 13,838.48-20,758.96-3,977.52

Finding the Fourth Proportional to 13,838.48, 20,758.96 and 3,977.52

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Solution

The fourth proportional to 13,838.48, 20,758.96 and 3,977.52 is: 5,966.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,838.48 : 20,758.96 = 3,977.52 : x
  2. Step 2: Convert to fraction form
    13,838.48/20,758.96 = 3,977.52/x
  3. Step 3: Cross multiply
    13,838.48x = 20,758.96 × 3,977.52
  4. Step 4: Simplify right side
    13,838.48x = 82,569,178.58
  5. Step 5: Solve for x
    x = 82,569,178.58/13,838.48
  6. Step 6: Final answer
    x = 5,966.64

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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.