Home / 11,860.67-16,348.88-9,338.78

Finding the Fourth Proportional to 11,860.67, 16,348.88 and 9,338.78

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Solution

The fourth proportional to 11,860.67, 16,348.88 and 9,338.78 is: 12,872.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,860.67 : 16,348.88 = 9,338.78 : x
  2. Step 2: Convert to fraction form
    11,860.67/16,348.88 = 9,338.78/x
  3. Step 3: Cross multiply
    11,860.67x = 16,348.88 × 9,338.78
  4. Step 4: Simplify right side
    11,860.67x = 152,678,546.87
  5. Step 5: Solve for x
    x = 152,678,546.87/11,860.67
  6. Step 6: Final answer
    x = 12,872.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.