Home / 18,243.10-27,357.33-8,880.39

Finding the Fourth Proportional to 18,243.10, 27,357.33 and 8,880.39

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Solution

The fourth proportional to 18,243.10, 27,357.33 and 8,880.39 is: 13,317.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,243.10 : 27,357.33 = 8,880.39 : x
  2. Step 2: Convert to fraction form
    18,243.10/27,357.33 = 8,880.39/x
  3. Step 3: Cross multiply
    18,243.10x = 27,357.33 × 8,880.39
  4. Step 4: Simplify right side
    18,243.10x = 242,943,759.76
  5. Step 5: Solve for x
    x = 242,943,759.76/18,243.10
  6. Step 6: Final answer
    x = 13,317.02

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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.