Home / 12,930.27-19,391.66-5,906.55

Finding the Fourth Proportional to 12,930.27, 19,391.66 and 5,906.55

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Solution

The fourth proportional to 12,930.27, 19,391.66 and 5,906.55 is: 8,858.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,930.27 : 19,391.66 = 5,906.55 : x
  2. Step 2: Convert to fraction form
    12,930.27/19,391.66 = 5,906.55/x
  3. Step 3: Cross multiply
    12,930.27x = 19,391.66 × 5,906.55
  4. Step 4: Simplify right side
    12,930.27x = 114,537,779.84
  5. Step 5: Solve for x
    x = 114,537,779.84/12,930.27
  6. Step 6: Final answer
    x = 8,858.11

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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.