Home / 8,107.30-12,153.60-2,911.96

Finding the Fourth Proportional to 8,107.30, 12,153.60 and 2,911.96

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Solution

The fourth proportional to 8,107.30, 12,153.60 and 2,911.96 is: 4,365.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,107.30 : 12,153.60 = 2,911.96 : x
  2. Step 2: Convert to fraction form
    8,107.30/12,153.60 = 2,911.96/x
  3. Step 3: Cross multiply
    8,107.30x = 12,153.60 × 2,911.96
  4. Step 4: Simplify right side
    8,107.30x = 35,390,797.06
  5. Step 5: Solve for x
    x = 35,390,797.06/8,107.30
  6. Step 6: Final answer
    x = 4,365.30

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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.