Home / 12,690.44-19,032.57-5,294.96

Finding the Fourth Proportional to 12,690.44, 19,032.57 and 5,294.96

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Solution

The fourth proportional to 12,690.44, 19,032.57 and 5,294.96 is: 7,941.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,690.44 : 19,032.57 = 5,294.96 : x
  2. Step 2: Convert to fraction form
    12,690.44/19,032.57 = 5,294.96/x
  3. Step 3: Cross multiply
    12,690.44x = 19,032.57 × 5,294.96
  4. Step 4: Simplify right side
    12,690.44x = 100,776,601.68
  5. Step 5: Solve for x
    x = 100,776,601.68/12,690.44
  6. Step 6: Final answer
    x = 7,941.15

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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.