Home / 13,590.36-18,755.00-7,622.43

Finding the Fourth Proportional to 13,590.36, 18,755.00 and 7,622.43

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Solution

The fourth proportional to 13,590.36, 18,755.00 and 7,622.43 is: 10,519.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590.36 : 18,755.00 = 7,622.43 : x
  2. Step 2: Convert to fraction form
    13,590.36/18,755.00 = 7,622.43/x
  3. Step 3: Cross multiply
    13,590.36x = 18,755.00 × 7,622.43
  4. Step 4: Simplify right side
    13,590.36x = 142,958,636.54
  5. Step 5: Solve for x
    x = 142,958,636.54/13,590.36
  6. Step 6: Final answer
    x = 10,519.12

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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.