Home / 12,089.10-18,134.79-4,190.38

Finding the Fourth Proportional to 12,089.10, 18,134.79 and 4,190.38

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Solution

The fourth proportional to 12,089.10, 18,134.79 and 4,190.38 is: 6,285.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089.10 : 18,134.79 = 4,190.38 : x
  2. Step 2: Convert to fraction form
    12,089.10/18,134.79 = 4,190.38/x
  3. Step 3: Cross multiply
    12,089.10x = 18,134.79 × 4,190.38
  4. Step 4: Simplify right side
    12,089.10x = 75,991,702.28
  5. Step 5: Solve for x
    x = 75,991,702.28/12,089.10
  6. Step 6: Final answer
    x = 6,285.97

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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.