Home / 21,095.46-29,111.61-11,664.09

Finding the Fourth Proportional to 21,095.46, 29,111.61 and 11,664.09

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Solution

The fourth proportional to 21,095.46, 29,111.61 and 11,664.09 is: 16,096.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,095.46 : 29,111.61 = 11,664.09 : x
  2. Step 2: Convert to fraction form
    21,095.46/29,111.61 = 11,664.09/x
  3. Step 3: Cross multiply
    21,095.46x = 29,111.61 × 11,664.09
  4. Step 4: Simplify right side
    21,095.46x = 339,560,439.08
  5. Step 5: Solve for x
    x = 339,560,439.08/21,095.46
  6. Step 6: Final answer
    x = 16,096.38

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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.