Home / 8,077.09-12,122.93-3,400.56

Finding the Fourth Proportional to 8,077.09, 12,122.93 and 3,400.56

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Solution

The fourth proportional to 8,077.09, 12,122.93 and 3,400.56 is: 5,103.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077.09 : 12,122.93 = 3,400.56 : x
  2. Step 2: Convert to fraction form
    8,077.09/12,122.93 = 3,400.56/x
  3. Step 3: Cross multiply
    8,077.09x = 12,122.93 × 3,400.56
  4. Step 4: Simplify right side
    8,077.09x = 41,224,750.84
  5. Step 5: Solve for x
    x = 41,224,750.84/8,077.09
  6. Step 6: Final answer
    x = 5,103.91

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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.