Home / 11,975.24-16,531.61-9,280.37

Finding the Fourth Proportional to 11,975.24, 16,531.61 and 9,280.37

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Solution

The fourth proportional to 11,975.24, 16,531.61 and 9,280.37 is: 12,811.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,975.24 : 16,531.61 = 9,280.37 : x
  2. Step 2: Convert to fraction form
    11,975.24/16,531.61 = 9,280.37/x
  3. Step 3: Cross multiply
    11,975.24x = 16,531.61 × 9,280.37
  4. Step 4: Simplify right side
    11,975.24x = 153,419,328.44
  5. Step 5: Solve for x
    x = 153,419,328.44/11,975.24
  6. Step 6: Final answer
    x = 12,811.38

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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.