Home / 11,975.45-16,517.93-7,884.95

Finding the Fourth Proportional to 11,975.45, 16,517.93 and 7,884.95

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Solution

The fourth proportional to 11,975.45, 16,517.93 and 7,884.95 is: 10,875.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,975.45 : 16,517.93 = 7,884.95 : x
  2. Step 2: Convert to fraction form
    11,975.45/16,517.93 = 7,884.95/x
  3. Step 3: Cross multiply
    11,975.45x = 16,517.93 × 7,884.95
  4. Step 4: Simplify right side
    11,975.45x = 130,242,930.14
  5. Step 5: Solve for x
    x = 130,242,930.14/11,975.45
  6. Step 6: Final answer
    x = 10,875.83

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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.