Home / 13,525.38-18,664.56-7,556.94

Finding the Fourth Proportional to 13,525.38, 18,664.56 and 7,556.94

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Solution

The fourth proportional to 13,525.38, 18,664.56 and 7,556.94 is: 10,428.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,525.38 : 18,664.56 = 7,556.94 : x
  2. Step 2: Convert to fraction form
    13,525.38/18,664.56 = 7,556.94/x
  3. Step 3: Cross multiply
    13,525.38x = 18,664.56 × 7,556.94
  4. Step 4: Simplify right side
    13,525.38x = 141,046,960.05
  5. Step 5: Solve for x
    x = 141,046,960.05/13,525.38
  6. Step 6: Final answer
    x = 10,428.32

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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.