Home / 18,804.88-28,203.80-9,442.38

Finding the Fourth Proportional to 18,804.88, 28,203.80 and 9,442.38

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Solution

The fourth proportional to 18,804.88, 28,203.80 and 9,442.38 is: 14,161.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,804.88 : 28,203.80 = 9,442.38 : x
  2. Step 2: Convert to fraction form
    18,804.88/28,203.80 = 9,442.38/x
  3. Step 3: Cross multiply
    18,804.88x = 28,203.80 × 9,442.38
  4. Step 4: Simplify right side
    18,804.88x = 266,310,997.04
  5. Step 5: Solve for x
    x = 266,310,997.04/18,804.88
  6. Step 6: Final answer
    x = 14,161.80

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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.