Home / 18,639.36-27,955.20-8,244.48

Finding the Fourth Proportional to 18,639.36, 27,955.20 and 8,244.48

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Solution

The fourth proportional to 18,639.36, 27,955.20 and 8,244.48 is: 12,365.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,639.36 : 27,955.20 = 8,244.48 : x
  2. Step 2: Convert to fraction form
    18,639.36/27,955.20 = 8,244.48/x
  3. Step 3: Cross multiply
    18,639.36x = 27,955.20 × 8,244.48
  4. Step 4: Simplify right side
    18,639.36x = 230,476,087.30
  5. Step 5: Solve for x
    x = 230,476,087.30/18,639.36
  6. Step 6: Final answer
    x = 12,365.02

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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.