Home / 18,704.28-28,043.45-7,014.36

Finding the Fourth Proportional to 18,704.28, 28,043.45 and 7,014.36

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Solution

The fourth proportional to 18,704.28, 28,043.45 and 7,014.36 is: 10,516.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704.28 : 28,043.45 = 7,014.36 : x
  2. Step 2: Convert to fraction form
    18,704.28/28,043.45 = 7,014.36/x
  3. Step 3: Cross multiply
    18,704.28x = 28,043.45 × 7,014.36
  4. Step 4: Simplify right side
    18,704.28x = 196,706,853.94
  5. Step 5: Solve for x
    x = 196,706,853.94/18,704.28
  6. Step 6: Final answer
    x = 10,516.68

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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.