Home / 12,739.73-19,112.31-4,948.52

Finding the Fourth Proportional to 12,739.73, 19,112.31 and 4,948.52

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Solution

The fourth proportional to 12,739.73, 19,112.31 and 4,948.52 is: 7,423.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739.73 : 19,112.31 = 4,948.52 : x
  2. Step 2: Convert to fraction form
    12,739.73/19,112.31 = 4,948.52/x
  3. Step 3: Cross multiply
    12,739.73x = 19,112.31 × 4,948.52
  4. Step 4: Simplify right side
    12,739.73x = 94,577,648.28
  5. Step 5: Solve for x
    x = 94,577,648.28/12,739.73
  6. Step 6: Final answer
    x = 7,423.83

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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.