Home / 11,780.16-17,670.24-3,984.72

Finding the Fourth Proportional to 11,780.16, 17,670.24 and 3,984.72

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Solution

The fourth proportional to 11,780.16, 17,670.24 and 3,984.72 is: 5,977.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,780.16 : 17,670.24 = 3,984.72 : x
  2. Step 2: Convert to fraction form
    11,780.16/17,670.24 = 3,984.72/x
  3. Step 3: Cross multiply
    11,780.16x = 17,670.24 × 3,984.72
  4. Step 4: Simplify right side
    11,780.16x = 70,410,958.73
  5. Step 5: Solve for x
    x = 70,410,958.73/11,780.16
  6. Step 6: Final answer
    x = 5,977.08

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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.