Home / 18,385.54-27,558.56-7,276.79

Finding the Fourth Proportional to 18,385.54, 27,558.56 and 7,276.79

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Solution

The fourth proportional to 18,385.54, 27,558.56 and 7,276.79 is: 10,907.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,385.54 : 27,558.56 = 7,276.79 : x
  2. Step 2: Convert to fraction form
    18,385.54/27,558.56 = 7,276.79/x
  3. Step 3: Cross multiply
    18,385.54x = 27,558.56 × 7,276.79
  4. Step 4: Simplify right side
    18,385.54x = 200,537,940.91
  5. Step 5: Solve for x
    x = 200,537,940.91/18,385.54
  6. Step 6: Final answer
    x = 10,907.37

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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.