Home / 15,922.95-21,974.30-8,849.22

Finding the Fourth Proportional to 15,922.95, 21,974.30 and 8,849.22

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Solution

The fourth proportional to 15,922.95, 21,974.30 and 8,849.22 is: 12,212.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,922.95 : 21,974.30 = 8,849.22 : x
  2. Step 2: Convert to fraction form
    15,922.95/21,974.30 = 8,849.22/x
  3. Step 3: Cross multiply
    15,922.95x = 21,974.30 × 8,849.22
  4. Step 4: Simplify right side
    15,922.95x = 194,455,415.05
  5. Step 5: Solve for x
    x = 194,455,415.05/15,922.95
  6. Step 6: Final answer
    x = 12,212.27

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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.