Home / 9,519.40-13,137.44-5,270.64

Finding the Fourth Proportional to 9,519.40, 13,137.44 and 5,270.64

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Solution

The fourth proportional to 9,519.40, 13,137.44 and 5,270.64 is: 7,273.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,519.40 : 13,137.44 = 5,270.64 : x
  2. Step 2: Convert to fraction form
    9,519.40/13,137.44 = 5,270.64/x
  3. Step 3: Cross multiply
    9,519.40x = 13,137.44 × 5,270.64
  4. Step 4: Simplify right side
    9,519.40x = 69,242,716.76
  5. Step 5: Solve for x
    x = 69,242,716.76/9,519.40
  6. Step 6: Final answer
    x = 7,273.85

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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.