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Finding the Fourth Proportional to 8,181.45, 12,253.95 and 7,087.95

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Solution

The fourth proportional to 8,181.45, 12,253.95 and 7,087.95 is: 10,616.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,181.45 : 12,253.95 = 7,087.95 : x
  2. Step 2: Convert to fraction form
    8,181.45/12,253.95 = 7,087.95/x
  3. Step 3: Cross multiply
    8,181.45x = 12,253.95 × 7,087.95
  4. Step 4: Simplify right side
    8,181.45x = 86,855,384.90
  5. Step 5: Solve for x
    x = 86,855,384.90/8,181.45
  6. Step 6: Final answer
    x = 10,616.14

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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.