Home / 18,733.16-28,112.49-9,974.22

Finding the Fourth Proportional to 18,733.16, 28,112.49 and 9,974.22

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Solution

The fourth proportional to 18,733.16, 28,112.49 and 9,974.22 is: 14,968.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,733.16 : 28,112.49 = 9,974.22 : x
  2. Step 2: Convert to fraction form
    18,733.16/28,112.49 = 9,974.22/x
  3. Step 3: Cross multiply
    18,733.16x = 28,112.49 × 9,974.22
  4. Step 4: Simplify right side
    18,733.16x = 280,400,160.01
  5. Step 5: Solve for x
    x = 280,400,160.01/18,733.16
  6. Step 6: Final answer
    x = 14,968.12

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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.