Home / 13,429.67-20,144.91-6,410.43

Finding the Fourth Proportional to 13,429.67, 20,144.91 and 6,410.43

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Solution

The fourth proportional to 13,429.67, 20,144.91 and 6,410.43 is: 9,615.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.67 : 20,144.91 = 6,410.43 : x
  2. Step 2: Convert to fraction form
    13,429.67/20,144.91 = 6,410.43/x
  3. Step 3: Cross multiply
    13,429.67x = 20,144.91 × 6,410.43
  4. Step 4: Simplify right side
    13,429.67x = 129,137,535.41
  5. Step 5: Solve for x
    x = 129,137,535.41/13,429.67
  6. Step 6: Final answer
    x = 9,615.84

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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.