Home / 8,125.79-12,172.07-3,953.27

Finding the Fourth Proportional to 8,125.79, 12,172.07 and 3,953.27

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Solution

The fourth proportional to 8,125.79, 12,172.07 and 3,953.27 is: 5,921.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.79 : 12,172.07 = 3,953.27 : x
  2. Step 2: Convert to fraction form
    8,125.79/12,172.07 = 3,953.27/x
  3. Step 3: Cross multiply
    8,125.79x = 12,172.07 × 3,953.27
  4. Step 4: Simplify right side
    8,125.79x = 48,119,519.48
  5. Step 5: Solve for x
    x = 48,119,519.48/8,125.79
  6. Step 6: Final answer
    x = 5,921.83

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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.