Home / 15,819.42-21,837.96-10,162.38

Finding the Fourth Proportional to 15,819.42, 21,837.96 and 10,162.38

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Solution

The fourth proportional to 15,819.42, 21,837.96 and 10,162.38 is: 14,028.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,819.42 : 21,837.96 = 10,162.38 : x
  2. Step 2: Convert to fraction form
    15,819.42/21,837.96 = 10,162.38/x
  3. Step 3: Cross multiply
    15,819.42x = 21,837.96 × 10,162.38
  4. Step 4: Simplify right side
    15,819.42x = 221,925,647.94
  5. Step 5: Solve for x
    x = 221,925,647.94/15,819.42
  6. Step 6: Final answer
    x = 14,028.68

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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.