Home / 13,448.88-20,158.38-10,151.28

Finding the Fourth Proportional to 13,448.88, 20,158.38 and 10,151.28

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Solution

The fourth proportional to 13,448.88, 20,158.38 and 10,151.28 is: 15,215.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.88 : 20,158.38 = 10,151.28 : x
  2. Step 2: Convert to fraction form
    13,448.88/20,158.38 = 10,151.28/x
  3. Step 3: Cross multiply
    13,448.88x = 20,158.38 × 10,151.28
  4. Step 4: Simplify right side
    13,448.88x = 204,633,359.73
  5. Step 5: Solve for x
    x = 204,633,359.73/13,448.88
  6. Step 6: Final answer
    x = 15,215.64

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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.