Home / 8,107.36-12,161.76-2,914.72

Finding the Fourth Proportional to 8,107.36, 12,161.76 and 2,914.72

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Solution

The fourth proportional to 8,107.36, 12,161.76 and 2,914.72 is: 4,372.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,107.36 : 12,161.76 = 2,914.72 : x
  2. Step 2: Convert to fraction form
    8,107.36/12,161.76 = 2,914.72/x
  3. Step 3: Cross multiply
    8,107.36x = 12,161.76 × 2,914.72
  4. Step 4: Simplify right side
    8,107.36x = 35,448,125.11
  5. Step 5: Solve for x
    x = 35,448,125.11/8,107.36
  6. Step 6: Final answer
    x = 4,372.34

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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.