Home / 7,992.40-11,029.62-4,455.49

Finding the Fourth Proportional to 7,992.40, 11,029.62 and 4,455.49

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Solution

The fourth proportional to 7,992.40, 11,029.62 and 4,455.49 is: 6,148.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,992.40 : 11,029.62 = 4,455.49 : x
  2. Step 2: Convert to fraction form
    7,992.40/11,029.62 = 4,455.49/x
  3. Step 3: Cross multiply
    7,992.40x = 11,029.62 × 4,455.49
  4. Step 4: Simplify right side
    7,992.40x = 49,142,361.61
  5. Step 5: Solve for x
    x = 49,142,361.61/7,992.40
  6. Step 6: Final answer
    x = 6,148.64

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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.