Home / 21,396.30-29,527.86-11,964.84

Finding the Fourth Proportional to 21,396.30, 29,527.86 and 11,964.84

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Solution

The fourth proportional to 21,396.30, 29,527.86 and 11,964.84 is: 16,512.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,396.30 : 29,527.86 = 11,964.84 : x
  2. Step 2: Convert to fraction form
    21,396.30/29,527.86 = 11,964.84/x
  3. Step 3: Cross multiply
    21,396.30x = 29,527.86 × 11,964.84
  4. Step 4: Simplify right side
    21,396.30x = 353,296,120.44
  5. Step 5: Solve for x
    x = 353,296,120.44/21,396.30
  6. Step 6: Final answer
    x = 16,512.02

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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.