Home / 12,581.66-17,363.60-8,325.28

Finding the Fourth Proportional to 12,581.66, 17,363.60 and 8,325.28

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Solution

The fourth proportional to 12,581.66, 17,363.60 and 8,325.28 is: 11,489.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,581.66 : 17,363.60 = 8,325.28 : x
  2. Step 2: Convert to fraction form
    12,581.66/17,363.60 = 8,325.28/x
  3. Step 3: Cross multiply
    12,581.66x = 17,363.60 × 8,325.28
  4. Step 4: Simplify right side
    12,581.66x = 144,556,843.11
  5. Step 5: Solve for x
    x = 144,556,843.11/12,581.66
  6. Step 6: Final answer
    x = 11,489.49

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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.