Home / 18,406.28-25,416.92-13,682.36

Finding the Fourth Proportional to 18,406.28, 25,416.92 and 13,682.36

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Solution

The fourth proportional to 18,406.28, 25,416.92 and 13,682.36 is: 18,893.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,406.28 : 25,416.92 = 13,682.36 : x
  2. Step 2: Convert to fraction form
    18,406.28/25,416.92 = 13,682.36/x
  3. Step 3: Cross multiply
    18,406.28x = 25,416.92 × 13,682.36
  4. Step 4: Simplify right side
    18,406.28x = 347,763,449.53
  5. Step 5: Solve for x
    x = 347,763,449.53/18,406.28
  6. Step 6: Final answer
    x = 18,893.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.