Home / 12,277.78-18,416.64-3,512.68

Finding the Fourth Proportional to 12,277.78, 18,416.64 and 3,512.68

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Solution

The fourth proportional to 12,277.78, 18,416.64 and 3,512.68 is: 5,269.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,277.78 : 18,416.64 = 3,512.68 : x
  2. Step 2: Convert to fraction form
    12,277.78/18,416.64 = 3,512.68/x
  3. Step 3: Cross multiply
    12,277.78x = 18,416.64 × 3,512.68
  4. Step 4: Simplify right side
    12,277.78x = 64,691,763.00
  5. Step 5: Solve for x
    x = 64,691,763.00/12,277.78
  6. Step 6: Final answer
    x = 5,269.01

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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.