Home / 18,128.94-27,193.71-4,981.23

Finding the Fourth Proportional to 18,128.94, 27,193.71 and 4,981.23

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Solution

The fourth proportional to 18,128.94, 27,193.71 and 4,981.23 is: 7,471.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.94 : 27,193.71 = 4,981.23 : x
  2. Step 2: Convert to fraction form
    18,128.94/27,193.71 = 4,981.23/x
  3. Step 3: Cross multiply
    18,128.94x = 27,193.71 × 4,981.23
  4. Step 4: Simplify right side
    18,128.94x = 135,458,124.06
  5. Step 5: Solve for x
    x = 135,458,124.06/18,128.94
  6. Step 6: Final answer
    x = 7,471.93

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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.