Home / 18,963.05-28,442.35-11,922.27

Finding the Fourth Proportional to 18,963.05, 28,442.35 and 11,922.27

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Solution

The fourth proportional to 18,963.05, 28,442.35 and 11,922.27 is: 17,882.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,963.05 : 28,442.35 = 11,922.27 : x
  2. Step 2: Convert to fraction form
    18,963.05/28,442.35 = 11,922.27/x
  3. Step 3: Cross multiply
    18,963.05x = 28,442.35 × 11,922.27
  4. Step 4: Simplify right side
    18,963.05x = 339,097,316.52
  5. Step 5: Solve for x
    x = 339,097,316.52/18,963.05
  6. Step 6: Final answer
    x = 17,882.01

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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.