Home / 21,146.06-29,181.55-12,193.43

Finding the Fourth Proportional to 21,146.06, 29,181.55 and 12,193.43

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Solution

The fourth proportional to 21,146.06, 29,181.55 and 12,193.43 is: 16,826.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,146.06 : 29,181.55 = 12,193.43 : x
  2. Step 2: Convert to fraction form
    21,146.06/29,181.55 = 12,193.43/x
  3. Step 3: Cross multiply
    21,146.06x = 29,181.55 × 12,193.43
  4. Step 4: Simplify right side
    21,146.06x = 355,823,126.25
  5. Step 5: Solve for x
    x = 355,823,126.25/21,146.06
  6. Step 6: Final answer
    x = 16,826.93

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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.