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Finding the Fourth Proportional to 18,879, 26,014.60 and 14,604.09

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Solution

The fourth proportional to 18,879, 26,014.60 and 14,604.09 is: 20,123.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,879 : 26,014.60 = 14,604.09 : x
  2. Step 2: Convert to fraction form
    18,879/26,014.60 = 14,604.09/x
  3. Step 3: Cross multiply
    18,879x = 26,014.60 × 14,604.09
  4. Step 4: Simplify right side
    18,879x = 379,919,559.71
  5. Step 5: Solve for x
    x = 379,919,559.71/18,879
  6. Step 6: Final answer
    x = 20,123.92

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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.