Home / 18,690.55-25,792.38-10,625.09

Finding the Fourth Proportional to 18,690.55, 25,792.38 and 10,625.09

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Solution

The fourth proportional to 18,690.55, 25,792.38 and 10,625.09 is: 14,662.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690.55 : 25,792.38 = 10,625.09 : x
  2. Step 2: Convert to fraction form
    18,690.55/25,792.38 = 10,625.09/x
  3. Step 3: Cross multiply
    18,690.55x = 25,792.38 × 10,625.09
  4. Step 4: Simplify right side
    18,690.55x = 274,046,347.22
  5. Step 5: Solve for x
    x = 274,046,347.22/18,690.55
  6. Step 6: Final answer
    x = 14,662.29

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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.