Home / 13,679.95-20,504.89-5,358.42

Finding the Fourth Proportional to 13,679.95, 20,504.89 and 5,358.42

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Solution

The fourth proportional to 13,679.95, 20,504.89 and 5,358.42 is: 8,031.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,679.95 : 20,504.89 = 5,358.42 : x
  2. Step 2: Convert to fraction form
    13,679.95/20,504.89 = 5,358.42/x
  3. Step 3: Cross multiply
    13,679.95x = 20,504.89 × 5,358.42
  4. Step 4: Simplify right side
    13,679.95x = 109,873,683.36
  5. Step 5: Solve for x
    x = 109,873,683.36/13,679.95
  6. Step 6: Final answer
    x = 8,031.73

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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.