Home / 13,939.88-19,222.08-11,101.64

Finding the Fourth Proportional to 13,939.88, 19,222.08 and 11,101.64

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Solution

The fourth proportional to 13,939.88, 19,222.08 and 11,101.64 is: 15,308.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,939.88 : 19,222.08 = 11,101.64 : x
  2. Step 2: Convert to fraction form
    13,939.88/19,222.08 = 11,101.64/x
  3. Step 3: Cross multiply
    13,939.88x = 19,222.08 × 11,101.64
  4. Step 4: Simplify right side
    13,939.88x = 213,396,612.21
  5. Step 5: Solve for x
    x = 213,396,612.21/13,939.88
  6. Step 6: Final answer
    x = 15,308.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.