Home / 8,425.57-12,629.46-3,157.14

Finding the Fourth Proportional to 8,425.57, 12,629.46 and 3,157.14

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Solution

The fourth proportional to 8,425.57, 12,629.46 and 3,157.14 is: 4,732.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,425.57 : 12,629.46 = 3,157.14 : x
  2. Step 2: Convert to fraction form
    8,425.57/12,629.46 = 3,157.14/x
  3. Step 3: Cross multiply
    8,425.57x = 12,629.46 × 3,157.14
  4. Step 4: Simplify right side
    8,425.57x = 39,872,973.34
  5. Step 5: Solve for x
    x = 39,872,973.34/8,425.57
  6. Step 6: Final answer
    x = 4,732.38

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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.