Home / 19,723.14-27,218-12,649.60

Finding the Fourth Proportional to 19,723.14, 27,218 and 12,649.60

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Solution

The fourth proportional to 19,723.14, 27,218 and 12,649.60 is: 17,456.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,723.14 : 27,218 = 12,649.60 : x
  2. Step 2: Convert to fraction form
    19,723.14/27,218 = 12,649.60/x
  3. Step 3: Cross multiply
    19,723.14x = 27,218 × 12,649.60
  4. Step 4: Simplify right side
    19,723.14x = 344,296,812.80
  5. Step 5: Solve for x
    x = 344,296,812.80/19,723.14
  6. Step 6: Final answer
    x = 17,456.49

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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.