Home / 13,525.70-18,664.25-7,556.54

Finding the Fourth Proportional to 13,525.70, 18,664.25 and 7,556.54

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Solution

The fourth proportional to 13,525.70, 18,664.25 and 7,556.54 is: 10,427.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,525.70 : 18,664.25 = 7,556.54 : x
  2. Step 2: Convert to fraction form
    13,525.70/18,664.25 = 7,556.54/x
  3. Step 3: Cross multiply
    13,525.70x = 18,664.25 × 7,556.54
  4. Step 4: Simplify right side
    13,525.70x = 141,037,020.59
  5. Step 5: Solve for x
    x = 141,037,020.59/13,525.70
  6. Step 6: Final answer
    x = 10,427.34

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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.