Home / 18,272.98-25,216.50-9,889.48

Finding the Fourth Proportional to 18,272.98, 25,216.50 and 9,889.48

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Solution

The fourth proportional to 18,272.98, 25,216.50 and 9,889.48 is: 13,647.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,272.98 : 25,216.50 = 9,889.48 : x
  2. Step 2: Convert to fraction form
    18,272.98/25,216.50 = 9,889.48/x
  3. Step 3: Cross multiply
    18,272.98x = 25,216.50 × 9,889.48
  4. Step 4: Simplify right side
    18,272.98x = 249,378,072.42
  5. Step 5: Solve for x
    x = 249,378,072.42/18,272.98
  6. Step 6: Final answer
    x = 13,647.37

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Double 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.