Home / 12,379.48-17,084.58-6,790.60

Finding the Fourth Proportional to 12,379.48, 17,084.58 and 6,790.60

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Solution

The fourth proportional to 12,379.48, 17,084.58 and 6,790.60 is: 9,371.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379.48 : 17,084.58 = 6,790.60 : x
  2. Step 2: Convert to fraction form
    12,379.48/17,084.58 = 6,790.60/x
  3. Step 3: Cross multiply
    12,379.48x = 17,084.58 × 6,790.60
  4. Step 4: Simplify right side
    12,379.48x = 116,014,548.95
  5. Step 5: Solve for x
    x = 116,014,548.95/12,379.48
  6. Step 6: Final answer
    x = 9,371.52

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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.