Home / 12,849.98-19,274.79-3,490.90

Finding the Fourth Proportional to 12,849.98, 19,274.79 and 3,490.90

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Solution

The fourth proportional to 12,849.98, 19,274.79 and 3,490.90 is: 5,236.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,849.98 : 19,274.79 = 3,490.90 : x
  2. Step 2: Convert to fraction form
    12,849.98/19,274.79 = 3,490.90/x
  3. Step 3: Cross multiply
    12,849.98x = 19,274.79 × 3,490.90
  4. Step 4: Simplify right side
    12,849.98x = 67,286,329.31
  5. Step 5: Solve for x
    x = 67,286,329.31/12,849.98
  6. Step 6: Final answer
    x = 5,236.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.