Home / 13,321.28-19,982.25-4,556.13

Finding the Fourth Proportional to 13,321.28, 19,982.25 and 4,556.13

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Solution

The fourth proportional to 13,321.28, 19,982.25 and 4,556.13 is: 6,834.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.28 : 19,982.25 = 4,556.13 : x
  2. Step 2: Convert to fraction form
    13,321.28/19,982.25 = 4,556.13/x
  3. Step 3: Cross multiply
    13,321.28x = 19,982.25 × 4,556.13
  4. Step 4: Simplify right side
    13,321.28x = 91,041,728.69
  5. Step 5: Solve for x
    x = 91,041,728.69/13,321.28
  6. Step 6: Final answer
    x = 6,834.31

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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.