Home / 11,914.67-16,432.98-7,928.87

Finding the Fourth Proportional to 11,914.67, 16,432.98 and 7,928.87

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Solution

The fourth proportional to 11,914.67, 16,432.98 and 7,928.87 is: 10,935.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,914.67 : 16,432.98 = 7,928.87 : x
  2. Step 2: Convert to fraction form
    11,914.67/16,432.98 = 7,928.87/x
  3. Step 3: Cross multiply
    11,914.67x = 16,432.98 × 7,928.87
  4. Step 4: Simplify right side
    11,914.67x = 130,294,879.97
  5. Step 5: Solve for x
    x = 130,294,879.97/11,914.67
  6. Step 6: Final answer
    x = 10,935.67

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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.