Home / 13,220.81-19,825.38-6,195.15

Finding the Fourth Proportional to 13,220.81, 19,825.38 and 6,195.15

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Solution

The fourth proportional to 13,220.81, 19,825.38 and 6,195.15 is: 9,289.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.81 : 19,825.38 = 6,195.15 : x
  2. Step 2: Convert to fraction form
    13,220.81/19,825.38 = 6,195.15/x
  3. Step 3: Cross multiply
    13,220.81x = 19,825.38 × 6,195.15
  4. Step 4: Simplify right side
    13,220.81x = 122,821,202.91
  5. Step 5: Solve for x
    x = 122,821,202.91/13,220.81
  6. Step 6: Final answer
    x = 9,289.99

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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.