Home / 13,878.27-20,825.61-5,119.34

Finding the Fourth Proportional to 13,878.27, 20,825.61 and 5,119.34

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Solution

The fourth proportional to 13,878.27, 20,825.61 and 5,119.34 is: 7,682.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,878.27 : 20,825.61 = 5,119.34 : x
  2. Step 2: Convert to fraction form
    13,878.27/20,825.61 = 5,119.34/x
  3. Step 3: Cross multiply
    13,878.27x = 20,825.61 × 5,119.34
  4. Step 4: Simplify right side
    13,878.27x = 106,613,248.57
  5. Step 5: Solve for x
    x = 106,613,248.57/13,878.27
  6. Step 6: Final answer
    x = 7,682.03

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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.