Home / 8,119.34-12,177.61-2,274.56

Finding the Fourth Proportional to 8,119.34, 12,177.61 and 2,274.56

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Solution

The fourth proportional to 8,119.34, 12,177.61 and 2,274.56 is: 3,411.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.34 : 12,177.61 = 2,274.56 : x
  2. Step 2: Convert to fraction form
    8,119.34/12,177.61 = 2,274.56/x
  3. Step 3: Cross multiply
    8,119.34x = 12,177.61 × 2,274.56
  4. Step 4: Simplify right side
    8,119.34x = 27,698,704.60
  5. Step 5: Solve for x
    x = 27,698,704.60/8,119.34
  6. Step 6: Final answer
    x = 3,411.45

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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.