Home / 18,780.44-25,902.52-13,113.32

Finding the Fourth Proportional to 18,780.44, 25,902.52 and 13,113.32

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Solution

The fourth proportional to 18,780.44, 25,902.52 and 13,113.32 is: 18,086.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,780.44 : 25,902.52 = 13,113.32 : x
  2. Step 2: Convert to fraction form
    18,780.44/25,902.52 = 13,113.32/x
  3. Step 3: Cross multiply
    18,780.44x = 25,902.52 × 13,113.32
  4. Step 4: Simplify right side
    18,780.44x = 339,668,033.57
  5. Step 5: Solve for x
    x = 339,668,033.57/18,780.44
  6. Step 6: Final answer
    x = 18,086.27

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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.