Home / 13,576.44-18,734.91-7,911.36

Finding the Fourth Proportional to 13,576.44, 18,734.91 and 7,911.36

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Solution

The fourth proportional to 13,576.44, 18,734.91 and 7,911.36 is: 10,917.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576.44 : 18,734.91 = 7,911.36 : x
  2. Step 2: Convert to fraction form
    13,576.44/18,734.91 = 7,911.36/x
  3. Step 3: Cross multiply
    13,576.44x = 18,734.91 × 7,911.36
  4. Step 4: Simplify right side
    13,576.44x = 148,218,617.58
  5. Step 5: Solve for x
    x = 148,218,617.58/13,576.44
  6. Step 6: Final answer
    x = 10,917.34

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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.