Home / 18,709.49-25,818.98-10,211.58

Finding the Fourth Proportional to 18,709.49, 25,818.98 and 10,211.58

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Solution

The fourth proportional to 18,709.49, 25,818.98 and 10,211.58 is: 14,091.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709.49 : 25,818.98 = 10,211.58 : x
  2. Step 2: Convert to fraction form
    18,709.49/25,818.98 = 10,211.58/x
  3. Step 3: Cross multiply
    18,709.49x = 25,818.98 × 10,211.58
  4. Step 4: Simplify right side
    18,709.49x = 263,652,528.73
  5. Step 5: Solve for x
    x = 263,652,528.73/18,709.49
  6. Step 6: Final answer
    x = 14,091.91

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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.