Home / 10,889.80-16,342.92-7,975.66

Finding the Fourth Proportional to 10,889.80, 16,342.92 and 7,975.66

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Solution

The fourth proportional to 10,889.80, 16,342.92 and 7,975.66 is: 11,969.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.80 : 16,342.92 = 7,975.66 : x
  2. Step 2: Convert to fraction form
    10,889.80/16,342.92 = 7,975.66/x
  3. Step 3: Cross multiply
    10,889.80x = 16,342.92 × 7,975.66
  4. Step 4: Simplify right side
    10,889.80x = 130,345,573.33
  5. Step 5: Solve for x
    x = 130,345,573.33/10,889.80
  6. Step 6: Final answer
    x = 11,969.51

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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.