Home / 18,780.70-25,889.72-14,296.62

Finding the Fourth Proportional to 18,780.70, 25,889.72 and 14,296.62

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Solution

The fourth proportional to 18,780.70, 25,889.72 and 14,296.62 is: 19,708.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,780.70 : 25,889.72 = 14,296.62 : x
  2. Step 2: Convert to fraction form
    18,780.70/25,889.72 = 14,296.62/x
  3. Step 3: Cross multiply
    18,780.70x = 25,889.72 × 14,296.62
  4. Step 4: Simplify right side
    18,780.70x = 370,135,488.75
  5. Step 5: Solve for x
    x = 370,135,488.75/18,780.70
  6. Step 6: Final answer
    x = 19,708.29

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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.