Home / 8,106.21-12,160.49-2,913.30

Finding the Fourth Proportional to 8,106.21, 12,160.49 and 2,913.30

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Solution

The fourth proportional to 8,106.21, 12,160.49 and 2,913.30 is: 4,370.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.21 : 12,160.49 = 2,913.30 : x
  2. Step 2: Convert to fraction form
    8,106.21/12,160.49 = 2,913.30/x
  3. Step 3: Cross multiply
    8,106.21x = 12,160.49 × 2,913.30
  4. Step 4: Simplify right side
    8,106.21x = 35,427,140.95
  5. Step 5: Solve for x
    x = 35,427,140.95/8,106.21
  6. Step 6: Final answer
    x = 4,370.37

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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.