Home / 19,144.44-28,694.79-10,386.72

Finding the Fourth Proportional to 19,144.44, 28,694.79 and 10,386.72

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Solution

The fourth proportional to 19,144.44, 28,694.79 and 10,386.72 is: 15,568.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,144.44 : 28,694.79 = 10,386.72 : x
  2. Step 2: Convert to fraction form
    19,144.44/28,694.79 = 10,386.72/x
  3. Step 3: Cross multiply
    19,144.44x = 28,694.79 × 10,386.72
  4. Step 4: Simplify right side
    19,144.44x = 298,044,749.19
  5. Step 5: Solve for x
    x = 298,044,749.19/19,144.44
  6. Step 6: Final answer
    x = 15,568.21

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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.