Home / 13,556.88-18,698.85-12,441.42

Finding the Fourth Proportional to 13,556.88, 18,698.85 and 12,441.42

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Solution

The fourth proportional to 13,556.88, 18,698.85 and 12,441.42 is: 17,160.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556.88 : 18,698.85 = 12,441.42 : x
  2. Step 2: Convert to fraction form
    13,556.88/18,698.85 = 12,441.42/x
  3. Step 3: Cross multiply
    13,556.88x = 18,698.85 × 12,441.42
  4. Step 4: Simplify right side
    13,556.88x = 232,640,246.37
  5. Step 5: Solve for x
    x = 232,640,246.37/13,556.88
  6. Step 6: Final answer
    x = 17,160.31

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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.