Home / 18,145.60-27,201.99-12,601.55

Finding the Fourth Proportional to 18,145.60, 27,201.99 and 12,601.55

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Solution

The fourth proportional to 18,145.60, 27,201.99 and 12,601.55 is: 18,890.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145.60 : 27,201.99 = 12,601.55 : x
  2. Step 2: Convert to fraction form
    18,145.60/27,201.99 = 12,601.55/x
  3. Step 3: Cross multiply
    18,145.60x = 27,201.99 × 12,601.55
  4. Step 4: Simplify right side
    18,145.60x = 342,787,237.08
  5. Step 5: Solve for x
    x = 342,787,237.08/18,145.60
  6. Step 6: Final answer
    x = 18,890.93

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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.