Home / 13,641.51-20,470.12-5,743.41

Finding the Fourth Proportional to 13,641.51, 20,470.12 and 5,743.41

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Solution

The fourth proportional to 13,641.51, 20,470.12 and 5,743.41 is: 8,618.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,641.51 : 20,470.12 = 5,743.41 : x
  2. Step 2: Convert to fraction form
    13,641.51/20,470.12 = 5,743.41/x
  3. Step 3: Cross multiply
    13,641.51x = 20,470.12 × 5,743.41
  4. Step 4: Simplify right side
    13,641.51x = 117,568,200.79
  5. Step 5: Solve for x
    x = 117,568,200.79/13,641.51
  6. Step 6: Final answer
    x = 8,618.41

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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.