Home / 11,889.63-16,407.92-6,512.15

Finding the Fourth Proportional to 11,889.63, 16,407.92 and 6,512.15

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Solution

The fourth proportional to 11,889.63, 16,407.92 and 6,512.15 is: 8,986.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,889.63 : 16,407.92 = 6,512.15 : x
  2. Step 2: Convert to fraction form
    11,889.63/16,407.92 = 6,512.15/x
  3. Step 3: Cross multiply
    11,889.63x = 16,407.92 × 6,512.15
  4. Step 4: Simplify right side
    11,889.63x = 106,850,721.63
  5. Step 5: Solve for x
    x = 106,850,721.63/11,889.63
  6. Step 6: Final answer
    x = 8,986.88

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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.