Home / 21,314.96-29,413.36-11,754.95

Finding the Fourth Proportional to 21,314.96, 29,413.36 and 11,754.95

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Solution

The fourth proportional to 21,314.96, 29,413.36 and 11,754.95 is: 16,221.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,314.96 : 29,413.36 = 11,754.95 : x
  2. Step 2: Convert to fraction form
    21,314.96/29,413.36 = 11,754.95/x
  3. Step 3: Cross multiply
    21,314.96x = 29,413.36 × 11,754.95
  4. Step 4: Simplify right side
    21,314.96x = 345,752,650.63
  5. Step 5: Solve for x
    x = 345,752,650.63/21,314.96
  6. Step 6: Final answer
    x = 16,221.12

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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.