Home / 13,566.75-18,725.76-8,857.41

Finding the Fourth Proportional to 13,566.75, 18,725.76 and 8,857.41

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Solution

The fourth proportional to 13,566.75, 18,725.76 and 8,857.41 is: 12,225.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,566.75 : 18,725.76 = 8,857.41 : x
  2. Step 2: Convert to fraction form
    13,566.75/18,725.76 = 8,857.41/x
  3. Step 3: Cross multiply
    13,566.75x = 18,725.76 × 8,857.41
  4. Step 4: Simplify right side
    13,566.75x = 165,861,733.88
  5. Step 5: Solve for x
    x = 165,861,733.88/13,566.75
  6. Step 6: Final answer
    x = 12,225.61

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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.