Home / 8,106.36-12,160.80-3,426.39

Finding the Fourth Proportional to 8,106.36, 12,160.80 and 3,426.39

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Solution

The fourth proportional to 8,106.36, 12,160.80 and 3,426.39 is: 5,140.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.36 : 12,160.80 = 3,426.39 : x
  2. Step 2: Convert to fraction form
    8,106.36/12,160.80 = 3,426.39/x
  3. Step 3: Cross multiply
    8,106.36x = 12,160.80 × 3,426.39
  4. Step 4: Simplify right side
    8,106.36x = 41,667,643.51
  5. Step 5: Solve for x
    x = 41,667,643.51/8,106.36
  6. Step 6: Final answer
    x = 5,140.12

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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.