Home / 13,859.28-20,751.66-10,556.64

Finding the Fourth Proportional to 13,859.28, 20,751.66 and 10,556.64

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Solution

The fourth proportional to 13,859.28, 20,751.66 and 10,556.64 is: 15,806.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,859.28 : 20,751.66 = 10,556.64 : x
  2. Step 2: Convert to fraction form
    13,859.28/20,751.66 = 10,556.64/x
  3. Step 3: Cross multiply
    13,859.28x = 20,751.66 × 10,556.64
  4. Step 4: Simplify right side
    13,859.28x = 219,067,804.02
  5. Step 5: Solve for x
    x = 219,067,804.02/13,859.28
  6. Step 6: Final answer
    x = 15,806.58

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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.