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Finding the Fourth Proportional to 12,608.69, 18,913.02 and 3,724.14

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Solution

The fourth proportional to 12,608.69, 18,913.02 and 3,724.14 is: 5,586.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,608.69 : 18,913.02 = 3,724.14 : x
  2. Step 2: Convert to fraction form
    12,608.69/18,913.02 = 3,724.14/x
  3. Step 3: Cross multiply
    12,608.69x = 18,913.02 × 3,724.14
  4. Step 4: Simplify right side
    12,608.69x = 70,434,734.30
  5. Step 5: Solve for x
    x = 70,434,734.30/12,608.69
  6. Step 6: Final answer
    x = 5,586.21

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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.