Home / 13,104.26-18,095.10-12,680.60

Finding the Fourth Proportional to 13,104.26, 18,095.10 and 12,680.60

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Solution

The fourth proportional to 13,104.26, 18,095.10 and 12,680.60 is: 17,510.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,104.26 : 18,095.10 = 12,680.60 : x
  2. Step 2: Convert to fraction form
    13,104.26/18,095.10 = 12,680.60/x
  3. Step 3: Cross multiply
    13,104.26x = 18,095.10 × 12,680.60
  4. Step 4: Simplify right side
    13,104.26x = 229,456,634.58
  5. Step 5: Solve for x
    x = 229,456,634.58/13,104.26
  6. Step 6: Final answer
    x = 17,510.09

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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.