Home / 13,935.99-20,999.87-11,525.03

Finding the Fourth Proportional to 13,935.99, 20,999.87 and 11,525.03

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Solution

The fourth proportional to 13,935.99, 20,999.87 and 11,525.03 is: 17,366.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.99 : 20,999.87 = 11,525.03 : x
  2. Step 2: Convert to fraction form
    13,935.99/20,999.87 = 11,525.03/x
  3. Step 3: Cross multiply
    13,935.99x = 20,999.87 × 11,525.03
  4. Step 4: Simplify right side
    13,935.99x = 242,024,055.56
  5. Step 5: Solve for x
    x = 242,024,055.56/13,935.99
  6. Step 6: Final answer
    x = 17,366.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.