Home / 12,738.36-19,120.50-9,044.76

Finding the Fourth Proportional to 12,738.36, 19,120.50 and 9,044.76

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Solution

The fourth proportional to 12,738.36, 19,120.50 and 9,044.76 is: 13,576.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,738.36 : 19,120.50 = 9,044.76 : x
  2. Step 2: Convert to fraction form
    12,738.36/19,120.50 = 9,044.76/x
  3. Step 3: Cross multiply
    12,738.36x = 19,120.50 × 9,044.76
  4. Step 4: Simplify right side
    12,738.36x = 172,940,333.58
  5. Step 5: Solve for x
    x = 172,940,333.58/12,738.36
  6. Step 6: Final answer
    x = 13,576.34

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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.