Home / 14,379.58-19,850.70-8,409.34

Finding the Fourth Proportional to 14,379.58, 19,850.70 and 8,409.34

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Solution

The fourth proportional to 14,379.58, 19,850.70 and 8,409.34 is: 11,608.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,379.58 : 19,850.70 = 8,409.34 : x
  2. Step 2: Convert to fraction form
    14,379.58/19,850.70 = 8,409.34/x
  3. Step 3: Cross multiply
    14,379.58x = 19,850.70 × 8,409.34
  4. Step 4: Simplify right side
    14,379.58x = 166,931,285.54
  5. Step 5: Solve for x
    x = 166,931,285.54/14,379.58
  6. Step 6: Final answer
    x = 11,608.91

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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.