Home / 9,519.32-13,137.42-7,012.88

Finding the Fourth Proportional to 9,519.32, 13,137.42 and 7,012.88

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Solution

The fourth proportional to 9,519.32, 13,137.42 and 7,012.88 is: 9,678.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,519.32 : 13,137.42 = 7,012.88 : x
  2. Step 2: Convert to fraction form
    9,519.32/13,137.42 = 7,012.88/x
  3. Step 3: Cross multiply
    9,519.32x = 13,137.42 × 7,012.88
  4. Step 4: Simplify right side
    9,519.32x = 92,131,149.97
  5. Step 5: Solve for x
    x = 92,131,149.97/9,519.32
  6. Step 6: Final answer
    x = 9,678.33

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Double scale
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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.