Home / 21,166.86-29,209.98-11,735.64

Finding the Fourth Proportional to 21,166.86, 29,209.98 and 11,735.64

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Solution

The fourth proportional to 21,166.86, 29,209.98 and 11,735.64 is: 16,195.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,166.86 : 29,209.98 = 11,735.64 : x
  2. Step 2: Convert to fraction form
    21,166.86/29,209.98 = 11,735.64/x
  3. Step 3: Cross multiply
    21,166.86x = 29,209.98 × 11,735.64
  4. Step 4: Simplify right side
    21,166.86x = 342,797,809.69
  5. Step 5: Solve for x
    x = 342,797,809.69/21,166.86
  6. Step 6: Final answer
    x = 16,195.02

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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.