Home / 13,940.53-20,907.96-11,615.56

Finding the Fourth Proportional to 13,940.53, 20,907.96 and 11,615.56

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Solution

The fourth proportional to 13,940.53, 20,907.96 and 11,615.56 is: 17,420.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.53 : 20,907.96 = 11,615.56 : x
  2. Step 2: Convert to fraction form
    13,940.53/20,907.96 = 11,615.56/x
  3. Step 3: Cross multiply
    13,940.53x = 20,907.96 × 11,615.56
  4. Step 4: Simplify right side
    13,940.53x = 242,857,663.86
  5. Step 5: Solve for x
    x = 242,857,663.86/13,940.53
  6. Step 6: Final answer
    x = 17,420.98

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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.