Home / 13,576.33-18,729.59-9,101.49

Finding the Fourth Proportional to 13,576.33, 18,729.59 and 9,101.49

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Solution

The fourth proportional to 13,576.33, 18,729.59 and 9,101.49 is: 12,556.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576.33 : 18,729.59 = 9,101.49 : x
  2. Step 2: Convert to fraction form
    13,576.33/18,729.59 = 9,101.49/x
  3. Step 3: Cross multiply
    13,576.33x = 18,729.59 × 9,101.49
  4. Step 4: Simplify right side
    13,576.33x = 170,467,176.09
  5. Step 5: Solve for x
    x = 170,467,176.09/13,576.33
  6. Step 6: Final answer
    x = 12,556.20

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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.