Home / 18,861.03-26,040.40-11,698.56

Finding the Fourth Proportional to 18,861.03, 26,040.40 and 11,698.56

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Solution

The fourth proportional to 18,861.03, 26,040.40 and 11,698.56 is: 16,151.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,861.03 : 26,040.40 = 11,698.56 : x
  2. Step 2: Convert to fraction form
    18,861.03/26,040.40 = 11,698.56/x
  3. Step 3: Cross multiply
    18,861.03x = 26,040.40 × 11,698.56
  4. Step 4: Simplify right side
    18,861.03x = 304,635,152.58
  5. Step 5: Solve for x
    x = 304,635,152.58/18,861.03
  6. Step 6: Final answer
    x = 16,151.57

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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.