Home / 15,672.83-21,636.95-12,106.26

Finding the Fourth Proportional to 15,672.83, 21,636.95 and 12,106.26

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Solution

The fourth proportional to 15,672.83, 21,636.95 and 12,106.26 is: 16,713.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,672.83 : 21,636.95 = 12,106.26 : x
  2. Step 2: Convert to fraction form
    15,672.83/21,636.95 = 12,106.26/x
  3. Step 3: Cross multiply
    15,672.83x = 21,636.95 × 12,106.26
  4. Step 4: Simplify right side
    15,672.83x = 261,942,481.78
  5. Step 5: Solve for x
    x = 261,942,481.78/15,672.83
  6. Step 6: Final answer
    x = 16,713.16

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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.