Home / 13,743.53-20,601.45-5,420.33

Finding the Fourth Proportional to 13,743.53, 20,601.45 and 5,420.33

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Solution

The fourth proportional to 13,743.53, 20,601.45 and 5,420.33 is: 8,125.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.53 : 20,601.45 = 5,420.33 : x
  2. Step 2: Convert to fraction form
    13,743.53/20,601.45 = 5,420.33/x
  3. Step 3: Cross multiply
    13,743.53x = 20,601.45 × 5,420.33
  4. Step 4: Simplify right side
    13,743.53x = 111,666,554.47
  5. Step 5: Solve for x
    x = 111,666,554.47/13,743.53
  6. Step 6: Final answer
    x = 8,125.03

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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.