Home / 12,749.30-19,038.11-10,413.97

Finding the Fourth Proportional to 12,749.30, 19,038.11 and 10,413.97

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Solution

The fourth proportional to 12,749.30, 19,038.11 and 10,413.97 is: 15,550.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,749.30 : 19,038.11 = 10,413.97 : x
  2. Step 2: Convert to fraction form
    12,749.30/19,038.11 = 10,413.97/x
  3. Step 3: Cross multiply
    12,749.30x = 19,038.11 × 10,413.97
  4. Step 4: Simplify right side
    12,749.30x = 198,262,206.73
  5. Step 5: Solve for x
    x = 198,262,206.73/12,749.30
  6. Step 6: Final answer
    x = 15,550.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.