Home / 18,966.14-28,450.32-5,818.64

Finding the Fourth Proportional to 18,966.14, 28,450.32 and 5,818.64

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Solution

The fourth proportional to 18,966.14, 28,450.32 and 5,818.64 is: 8,728.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966.14 : 28,450.32 = 5,818.64 : x
  2. Step 2: Convert to fraction form
    18,966.14/28,450.32 = 5,818.64/x
  3. Step 3: Cross multiply
    18,966.14x = 28,450.32 × 5,818.64
  4. Step 4: Simplify right side
    18,966.14x = 165,542,169.96
  5. Step 5: Solve for x
    x = 165,542,169.96/18,966.14
  6. Step 6: Final answer
    x = 8,728.30

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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.