Home / 13,022.46-19,531.87-5,119.34

Finding the Fourth Proportional to 13,022.46, 19,531.87 and 5,119.34

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Solution

The fourth proportional to 13,022.46, 19,531.87 and 5,119.34 is: 7,678.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,022.46 : 19,531.87 = 5,119.34 : x
  2. Step 2: Convert to fraction form
    13,022.46/19,531.87 = 5,119.34/x
  3. Step 3: Cross multiply
    13,022.46x = 19,531.87 × 5,119.34
  4. Step 4: Simplify right side
    13,022.46x = 99,990,283.37
  5. Step 5: Solve for x
    x = 99,990,283.37/13,022.46
  6. Step 6: Final answer
    x = 7,678.29

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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.