Home / 11,286.54-16,905.15-6,890.67

Finding the Fourth Proportional to 11,286.54, 16,905.15 and 6,890.67

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Solution

The fourth proportional to 11,286.54, 16,905.15 and 6,890.67 is: 10,320.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.54 : 16,905.15 = 6,890.67 : x
  2. Step 2: Convert to fraction form
    11,286.54/16,905.15 = 6,890.67/x
  3. Step 3: Cross multiply
    11,286.54x = 16,905.15 × 6,890.67
  4. Step 4: Simplify right side
    11,286.54x = 116,487,809.95
  5. Step 5: Solve for x
    x = 116,487,809.95/11,286.54
  6. Step 6: Final answer
    x = 10,320.95

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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.