Home / 19,696.25-27,173.07-12,129.46

Finding the Fourth Proportional to 19,696.25, 27,173.07 and 12,129.46

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Solution

The fourth proportional to 19,696.25, 27,173.07 and 12,129.46 is: 16,733.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,696.25 : 27,173.07 = 12,129.46 : x
  2. Step 2: Convert to fraction form
    19,696.25/27,173.07 = 12,129.46/x
  3. Step 3: Cross multiply
    19,696.25x = 27,173.07 × 12,129.46
  4. Step 4: Simplify right side
    19,696.25x = 329,594,597.71
  5. Step 5: Solve for x
    x = 329,594,597.71/19,696.25
  6. Step 6: Final answer
    x = 16,733.87

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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.