Home / 12,522.78-17,253.62-8,266.26

Finding the Fourth Proportional to 12,522.78, 17,253.62 and 8,266.26

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Solution

The fourth proportional to 12,522.78, 17,253.62 and 8,266.26 is: 11,389.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,522.78 : 17,253.62 = 8,266.26 : x
  2. Step 2: Convert to fraction form
    12,522.78/17,253.62 = 8,266.26/x
  3. Step 3: Cross multiply
    12,522.78x = 17,253.62 × 8,266.26
  4. Step 4: Simplify right side
    12,522.78x = 142,622,867.53
  5. Step 5: Solve for x
    x = 142,622,867.53/12,522.78
  6. Step 6: Final answer
    x = 11,389.07

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Double scale
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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.