Home / 19,418.75-26,802.29-13,747.60

Finding the Fourth Proportional to 19,418.75, 26,802.29 and 13,747.60

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Solution

The fourth proportional to 19,418.75, 26,802.29 and 13,747.60 is: 18,974.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,418.75 : 26,802.29 = 13,747.60 : x
  2. Step 2: Convert to fraction form
    19,418.75/26,802.29 = 13,747.60/x
  3. Step 3: Cross multiply
    19,418.75x = 26,802.29 × 13,747.60
  4. Step 4: Simplify right side
    19,418.75x = 368,467,129.37
  5. Step 5: Solve for x
    x = 368,467,129.37/19,418.75
  6. Step 6: Final answer
    x = 18,974.82

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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.