Home / 11,994.78-16,561.60-7,748.33

Finding the Fourth Proportional to 11,994.78, 16,561.60 and 7,748.33

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Solution

The fourth proportional to 11,994.78, 16,561.60 and 7,748.33 is: 10,698.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,994.78 : 16,561.60 = 7,748.33 : x
  2. Step 2: Convert to fraction form
    11,994.78/16,561.60 = 7,748.33/x
  3. Step 3: Cross multiply
    11,994.78x = 16,561.60 × 7,748.33
  4. Step 4: Simplify right side
    11,994.78x = 128,324,639.95
  5. Step 5: Solve for x
    x = 128,324,639.95/11,994.78
  6. Step 6: Final answer
    x = 10,698.37

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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.