Home / 18,627.40-25,705.29-10,243.90

Finding the Fourth Proportional to 18,627.40, 25,705.29 and 10,243.90

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Solution

The fourth proportional to 18,627.40, 25,705.29 and 10,243.90 is: 14,136.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,627.40 : 25,705.29 = 10,243.90 : x
  2. Step 2: Convert to fraction form
    18,627.40/25,705.29 = 10,243.90/x
  3. Step 3: Cross multiply
    18,627.40x = 25,705.29 × 10,243.90
  4. Step 4: Simplify right side
    18,627.40x = 263,322,317.31
  5. Step 5: Solve for x
    x = 263,322,317.31/18,627.40
  6. Step 6: Final answer
    x = 14,136.29

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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.