Home / 18,272.94-25,216.62-9,889.44

Finding the Fourth Proportional to 18,272.94, 25,216.62 and 9,889.44

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Solution

The fourth proportional to 18,272.94, 25,216.62 and 9,889.44 is: 13,647.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,272.94 : 25,216.62 = 9,889.44 : x
  2. Step 2: Convert to fraction form
    18,272.94/25,216.62 = 9,889.44/x
  3. Step 3: Cross multiply
    18,272.94x = 25,216.62 × 9,889.44
  4. Step 4: Simplify right side
    18,272.94x = 249,378,250.49
  5. Step 5: Solve for x
    x = 249,378,250.49/18,272.94
  6. Step 6: Final answer
    x = 13,647.41

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Half scale
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Similar ratio
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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.