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Finding the Fourth Proportional to 18,007.55, 27,004.04 and 6,914.60

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Solution

The fourth proportional to 18,007.55, 27,004.04 and 6,914.60 is: 10,369.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,007.55 : 27,004.04 = 6,914.60 : x
  2. Step 2: Convert to fraction form
    18,007.55/27,004.04 = 6,914.60/x
  3. Step 3: Cross multiply
    18,007.55x = 27,004.04 × 6,914.60
  4. Step 4: Simplify right side
    18,007.55x = 186,722,100.41
  5. Step 5: Solve for x
    x = 186,722,100.41/18,007.55
  6. Step 6: Final answer
    x = 10,369.10

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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.