Home / 12,829.35-19,229.43-5,429.19

Finding the Fourth Proportional to 12,829.35, 19,229.43 and 5,429.19

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Solution

The fourth proportional to 12,829.35, 19,229.43 and 5,429.19 is: 8,137.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,829.35 : 19,229.43 = 5,429.19 : x
  2. Step 2: Convert to fraction form
    12,829.35/19,229.43 = 5,429.19/x
  3. Step 3: Cross multiply
    12,829.35x = 19,229.43 × 5,429.19
  4. Step 4: Simplify right side
    12,829.35x = 104,400,229.06
  5. Step 5: Solve for x
    x = 104,400,229.06/12,829.35
  6. Step 6: Final answer
    x = 8,137.61

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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.