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Finding the Fourth Proportional to 15,974.94, 22,043.43 and 8,900.94

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Solution

The fourth proportional to 15,974.94, 22,043.43 and 8,900.94 is: 12,282.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,974.94 : 22,043.43 = 8,900.94 : x
  2. Step 2: Convert to fraction form
    15,974.94/22,043.43 = 8,900.94/x
  3. Step 3: Cross multiply
    15,974.94x = 22,043.43 × 8,900.94
  4. Step 4: Simplify right side
    15,974.94x = 196,207,247.82
  5. Step 5: Solve for x
    x = 196,207,247.82/15,974.94
  6. Step 6: Final answer
    x = 12,282.19

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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.