Home / 8,102.09-12,153.40-2,555.49

Finding the Fourth Proportional to 8,102.09, 12,153.40 and 2,555.49

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Solution

The fourth proportional to 8,102.09, 12,153.40 and 2,555.49 is: 3,833.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,102.09 : 12,153.40 = 2,555.49 : x
  2. Step 2: Convert to fraction form
    8,102.09/12,153.40 = 2,555.49/x
  3. Step 3: Cross multiply
    8,102.09x = 12,153.40 × 2,555.49
  4. Step 4: Simplify right side
    8,102.09x = 31,057,892.17
  5. Step 5: Solve for x
    x = 31,057,892.17/8,102.09
  6. Step 6: Final answer
    x = 3,833.32

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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.