Home / 11,518.44-17,250.18-7,122.54

Finding the Fourth Proportional to 11,518.44, 17,250.18 and 7,122.54

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Solution

The fourth proportional to 11,518.44, 17,250.18 and 7,122.54 is: 10,666.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.44 : 17,250.18 = 7,122.54 : x
  2. Step 2: Convert to fraction form
    11,518.44/17,250.18 = 7,122.54/x
  3. Step 3: Cross multiply
    11,518.44x = 17,250.18 × 7,122.54
  4. Step 4: Simplify right side
    11,518.44x = 122,865,097.06
  5. Step 5: Solve for x
    x = 122,865,097.06/11,518.44
  6. Step 6: Final answer
    x = 10,666.82

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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.