Home / 21,454.07-29,608.37-11,896.95

Finding the Fourth Proportional to 21,454.07, 29,608.37 and 11,896.95

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Solution

The fourth proportional to 21,454.07, 29,608.37 and 11,896.95 is: 16,418.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,454.07 : 29,608.37 = 11,896.95 : x
  2. Step 2: Convert to fraction form
    21,454.07/29,608.37 = 11,896.95/x
  3. Step 3: Cross multiply
    21,454.07x = 29,608.37 × 11,896.95
  4. Step 4: Simplify right side
    21,454.07x = 352,249,312.01
  5. Step 5: Solve for x
    x = 352,249,312.01/21,454.07
  6. Step 6: Final answer
    x = 16,418.76

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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.