Home / 18,709.86-25,819.26-10,211.70

Finding the Fourth Proportional to 18,709.86, 25,819.26 and 10,211.70

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Solution

The fourth proportional to 18,709.86, 25,819.26 and 10,211.70 is: 14,091.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709.86 : 25,819.26 = 10,211.70 : x
  2. Step 2: Convert to fraction form
    18,709.86/25,819.26 = 10,211.70/x
  3. Step 3: Cross multiply
    18,709.86x = 25,819.26 × 10,211.70
  4. Step 4: Simplify right side
    18,709.86x = 263,658,537.34
  5. Step 5: Solve for x
    x = 263,658,537.34/18,709.86
  6. Step 6: Final answer
    x = 14,091.96

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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.