Home / 18,627.12-25,705.20-10,243.44

Finding the Fourth Proportional to 18,627.12, 25,705.20 and 10,243.44

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Solution

The fourth proportional to 18,627.12, 25,705.20 and 10,243.44 is: 14,135.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,627.12 : 25,705.20 = 10,243.44 : x
  2. Step 2: Convert to fraction form
    18,627.12/25,705.20 = 10,243.44/x
  3. Step 3: Cross multiply
    18,627.12x = 25,705.20 × 10,243.44
  4. Step 4: Simplify right side
    18,627.12x = 263,309,673.89
  5. Step 5: Solve for x
    x = 263,309,673.89/18,627.12
  6. Step 6: Final answer
    x = 14,135.82

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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.