Home / 18,818.85-28,222.35-6,809.45

Finding the Fourth Proportional to 18,818.85, 28,222.35 and 6,809.45

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Solution

The fourth proportional to 18,818.85, 28,222.35 and 6,809.45 is: 10,212.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.85 : 28,222.35 = 6,809.45 : x
  2. Step 2: Convert to fraction form
    18,818.85/28,222.35 = 6,809.45/x
  3. Step 3: Cross multiply
    18,818.85x = 28,222.35 × 6,809.45
  4. Step 4: Simplify right side
    18,818.85x = 192,178,610.65
  5. Step 5: Solve for x
    x = 192,178,610.65/18,818.85
  6. Step 6: Final answer
    x = 10,212.03

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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.