Home / 13,429.63-20,141.41-5,106.68

Finding the Fourth Proportional to 13,429.63, 20,141.41 and 5,106.68

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Solution

The fourth proportional to 13,429.63, 20,141.41 and 5,106.68 is: 7,658.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.63 : 20,141.41 = 5,106.68 : x
  2. Step 2: Convert to fraction form
    13,429.63/20,141.41 = 5,106.68/x
  3. Step 3: Cross multiply
    13,429.63x = 20,141.41 × 5,106.68
  4. Step 4: Simplify right side
    13,429.63x = 102,855,735.62
  5. Step 5: Solve for x
    x = 102,855,735.62/13,429.63
  6. Step 6: Final answer
    x = 7,658.87

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1.5x scale

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.