Home / 21,166.56-29,209.86-11,734.92

Finding the Fourth Proportional to 21,166.56, 29,209.86 and 11,734.92

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Solution

The fourth proportional to 21,166.56, 29,209.86 and 11,734.92 is: 16,194.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,166.56 : 29,209.86 = 11,734.92 : x
  2. Step 2: Convert to fraction form
    21,166.56/29,209.86 = 11,734.92/x
  3. Step 3: Cross multiply
    21,166.56x = 29,209.86 × 11,734.92
  4. Step 4: Simplify right side
    21,166.56x = 342,775,370.31
  5. Step 5: Solve for x
    x = 342,775,370.31/21,166.56
  6. Step 6: Final answer
    x = 16,194.19

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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.