Home / 13,907.36-20,851.24-5,141.12

Finding the Fourth Proportional to 13,907.36, 20,851.24 and 5,141.12

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Solution

The fourth proportional to 13,907.36, 20,851.24 and 5,141.12 is: 7,708.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.36 : 20,851.24 = 5,141.12 : x
  2. Step 2: Convert to fraction form
    13,907.36/20,851.24 = 5,141.12/x
  3. Step 3: Cross multiply
    13,907.36x = 20,851.24 × 5,141.12
  4. Step 4: Simplify right side
    13,907.36x = 107,198,726.99
  5. Step 5: Solve for x
    x = 107,198,726.99/13,907.36
  6. Step 6: Final answer
    x = 7,708.06

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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.