Home / 8,106.05-12,156.14-3,426.42

Finding the Fourth Proportional to 8,106.05, 12,156.14 and 3,426.42

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Solution

The fourth proportional to 8,106.05, 12,156.14 and 3,426.42 is: 5,138.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.05 : 12,156.14 = 3,426.42 : x
  2. Step 2: Convert to fraction form
    8,106.05/12,156.14 = 3,426.42/x
  3. Step 3: Cross multiply
    8,106.05x = 12,156.14 × 3,426.42
  4. Step 4: Simplify right side
    8,106.05x = 41,652,054.07
  5. Step 5: Solve for x
    x = 41,652,054.07/8,106.05
  6. Step 6: Final answer
    x = 5,138.39

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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.