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Finding the Fourth Proportional to 15,106.92, 20,850.04 and 12,585.03

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Solution

The fourth proportional to 15,106.92, 20,850.04 and 12,585.03 is: 17,369.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,106.92 : 20,850.04 = 12,585.03 : x
  2. Step 2: Convert to fraction form
    15,106.92/20,850.04 = 12,585.03/x
  3. Step 3: Cross multiply
    15,106.92x = 20,850.04 × 12,585.03
  4. Step 4: Simplify right side
    15,106.92x = 262,398,433.73
  5. Step 5: Solve for x
    x = 262,398,433.73/15,106.92
  6. Step 6: Final answer
    x = 17,369.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.