Home / 14,413.67-19,890.84-8,126.05

Finding the Fourth Proportional to 14,413.67, 19,890.84 and 8,126.05

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Solution

The fourth proportional to 14,413.67, 19,890.84 and 8,126.05 is: 11,213.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,413.67 : 19,890.84 = 8,126.05 : x
  2. Step 2: Convert to fraction form
    14,413.67/19,890.84 = 8,126.05/x
  3. Step 3: Cross multiply
    14,413.67x = 19,890.84 × 8,126.05
  4. Step 4: Simplify right side
    14,413.67x = 161,633,860.93
  5. Step 5: Solve for x
    x = 161,633,860.93/14,413.67
  6. Step 6: Final answer
    x = 11,213.93

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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.