Home / 18,863.48-28,290.60-6,853.67

Finding the Fourth Proportional to 18,863.48, 28,290.60 and 6,853.67

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Solution

The fourth proportional to 18,863.48, 28,290.60 and 6,853.67 is: 10,278.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,863.48 : 28,290.60 = 6,853.67 : x
  2. Step 2: Convert to fraction form
    18,863.48/28,290.60 = 6,853.67/x
  3. Step 3: Cross multiply
    18,863.48x = 28,290.60 × 6,853.67
  4. Step 4: Simplify right side
    18,863.48x = 193,894,436.50
  5. Step 5: Solve for x
    x = 193,894,436.50/18,863.48
  6. Step 6: Final answer
    x = 10,278.83

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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.