Home / 13,724.62-18,941.38-9,899.44

Finding the Fourth Proportional to 13,724.62, 18,941.38 and 9,899.44

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Solution

The fourth proportional to 13,724.62, 18,941.38 and 9,899.44 is: 13,662.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,724.62 : 18,941.38 = 9,899.44 : x
  2. Step 2: Convert to fraction form
    13,724.62/18,941.38 = 9,899.44/x
  3. Step 3: Cross multiply
    13,724.62x = 18,941.38 × 9,899.44
  4. Step 4: Simplify right side
    13,724.62x = 187,509,054.83
  5. Step 5: Solve for x
    x = 187,509,054.83/13,724.62
  6. Step 6: Final answer
    x = 13,662.24

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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.