Home / 12,964.44-19,450.74-4,638.78

Finding the Fourth Proportional to 12,964.44, 19,450.74 and 4,638.78

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Solution

The fourth proportional to 12,964.44, 19,450.74 and 4,638.78 is: 6,959.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,964.44 : 19,450.74 = 4,638.78 : x
  2. Step 2: Convert to fraction form
    12,964.44/19,450.74 = 4,638.78/x
  3. Step 3: Cross multiply
    12,964.44x = 19,450.74 × 4,638.78
  4. Step 4: Simplify right side
    12,964.44x = 90,227,703.70
  5. Step 5: Solve for x
    x = 90,227,703.70/12,964.44
  6. Step 6: Final answer
    x = 6,959.63

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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.