Home / 11,938.38-17,907.56-5,012.88

Finding the Fourth Proportional to 11,938.38, 17,907.56 and 5,012.88

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Solution

The fourth proportional to 11,938.38, 17,907.56 and 5,012.88 is: 7,519.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,938.38 : 17,907.56 = 5,012.88 : x
  2. Step 2: Convert to fraction form
    11,938.38/17,907.56 = 5,012.88/x
  3. Step 3: Cross multiply
    11,938.38x = 17,907.56 × 5,012.88
  4. Step 4: Simplify right side
    11,938.38x = 89,768,449.37
  5. Step 5: Solve for x
    x = 89,768,449.37/11,938.38
  6. Step 6: Final answer
    x = 7,519.32

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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.