Home / 13,823.48-20,743.82-5,615.48

Finding the Fourth Proportional to 13,823.48, 20,743.82 and 5,615.48

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Solution

The fourth proportional to 13,823.48, 20,743.82 and 5,615.48 is: 8,426.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.48 : 20,743.82 = 5,615.48 : x
  2. Step 2: Convert to fraction form
    13,823.48/20,743.82 = 5,615.48/x
  3. Step 3: Cross multiply
    13,823.48x = 20,743.82 × 5,615.48
  4. Step 4: Simplify right side
    13,823.48x = 116,486,506.33
  5. Step 5: Solve for x
    x = 116,486,506.33/13,823.48
  6. Step 6: Final answer
    x = 8,426.71

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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.