Home / 8,105.17-12,153.58-3,718.84

Finding the Fourth Proportional to 8,105.17, 12,153.58 and 3,718.84

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Solution

The fourth proportional to 8,105.17, 12,153.58 and 3,718.84 is: 5,576.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,105.17 : 12,153.58 = 3,718.84 : x
  2. Step 2: Convert to fraction form
    8,105.17/12,153.58 = 3,718.84/x
  3. Step 3: Cross multiply
    8,105.17x = 12,153.58 × 3,718.84
  4. Step 4: Simplify right side
    8,105.17x = 45,197,219.45
  5. Step 5: Solve for x
    x = 45,197,219.45/8,105.17
  6. Step 6: Final answer
    x = 5,576.34

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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.