Home / 8,429.09-12,634.70-3,160.64

Finding the Fourth Proportional to 8,429.09, 12,634.70 and 3,160.64

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Solution

The fourth proportional to 8,429.09, 12,634.70 and 3,160.64 is: 4,737.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,429.09 : 12,634.70 = 3,160.64 : x
  2. Step 2: Convert to fraction form
    8,429.09/12,634.70 = 3,160.64/x
  3. Step 3: Cross multiply
    8,429.09x = 12,634.70 × 3,160.64
  4. Step 4: Simplify right side
    8,429.09x = 39,933,659.23
  5. Step 5: Solve for x
    x = 39,933,659.23/8,429.09
  6. Step 6: Final answer
    x = 4,737.60

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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.