Home / 13,321.96-19,986.48-4,556.88

Finding the Fourth Proportional to 13,321.96, 19,986.48 and 4,556.88

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Solution

The fourth proportional to 13,321.96, 19,986.48 and 4,556.88 is: 6,836.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.96 : 19,986.48 = 4,556.88 : x
  2. Step 2: Convert to fraction form
    13,321.96/19,986.48 = 4,556.88/x
  3. Step 3: Cross multiply
    13,321.96x = 19,986.48 × 4,556.88
  4. Step 4: Simplify right side
    13,321.96x = 91,075,990.98
  5. Step 5: Solve for x
    x = 91,075,990.98/13,321.96
  6. Step 6: Final answer
    x = 6,836.53

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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.