Home / 18,709.43-25,818.21-10,211.34

Finding the Fourth Proportional to 18,709.43, 25,818.21 and 10,211.34

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Solution

The fourth proportional to 18,709.43, 25,818.21 and 10,211.34 is: 14,091.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709.43 : 25,818.21 = 10,211.34 : x
  2. Step 2: Convert to fraction form
    18,709.43/25,818.21 = 10,211.34/x
  3. Step 3: Cross multiply
    18,709.43x = 25,818.21 × 10,211.34
  4. Step 4: Simplify right side
    18,709.43x = 263,638,520.50
  5. Step 5: Solve for x
    x = 263,638,520.50/18,709.43
  6. Step 6: Final answer
    x = 14,091.21

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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.