Home / 18,139.07-27,198.95-6,289.83

Finding the Fourth Proportional to 18,139.07, 27,198.95 and 6,289.83

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Solution

The fourth proportional to 18,139.07, 27,198.95 and 6,289.83 is: 9,431.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.07 : 27,198.95 = 6,289.83 : x
  2. Step 2: Convert to fraction form
    18,139.07/27,198.95 = 6,289.83/x
  3. Step 3: Cross multiply
    18,139.07x = 27,198.95 × 6,289.83
  4. Step 4: Simplify right side
    18,139.07x = 171,076,740.23
  5. Step 5: Solve for x
    x = 171,076,740.23/18,139.07
  6. Step 6: Final answer
    x = 9,431.39

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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.