Home / 18,717.89-25,819.97-13,341.51

Finding the Fourth Proportional to 18,717.89, 25,819.97 and 13,341.51

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Solution

The fourth proportional to 18,717.89, 25,819.97 and 13,341.51 is: 18,403.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,717.89 : 25,819.97 = 13,341.51 : x
  2. Step 2: Convert to fraction form
    18,717.89/25,819.97 = 13,341.51/x
  3. Step 3: Cross multiply
    18,717.89x = 25,819.97 × 13,341.51
  4. Step 4: Simplify right side
    18,717.89x = 344,477,321.25
  5. Step 5: Solve for x
    x = 344,477,321.25/18,717.89
  6. Step 6: Final answer
    x = 18,403.65

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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.