Home / 8,128.34-12,194.23-2,580.94

Finding the Fourth Proportional to 8,128.34, 12,194.23 and 2,580.94

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Solution

The fourth proportional to 8,128.34, 12,194.23 and 2,580.94 is: 3,871.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.34 : 12,194.23 = 2,580.94 : x
  2. Step 2: Convert to fraction form
    8,128.34/12,194.23 = 2,580.94/x
  3. Step 3: Cross multiply
    8,128.34x = 12,194.23 × 2,580.94
  4. Step 4: Simplify right side
    8,128.34x = 31,472,575.98
  5. Step 5: Solve for x
    x = 31,472,575.98/8,128.34
  6. Step 6: Final answer
    x = 3,871.96

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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.