Home / 17,478-26,221.32-5,166

Finding the Fourth Proportional to 17,478, 26,221.32 and 5,166

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Solution

The fourth proportional to 17,478, 26,221.32 and 5,166 is: 7,750.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,478 : 26,221.32 = 5,166 : x
  2. Step 2: Convert to fraction form
    17,478/26,221.32 = 5,166/x
  3. Step 3: Cross multiply
    17,478x = 26,221.32 × 5,166
  4. Step 4: Simplify right side
    17,478x = 135,459,339.12
  5. Step 5: Solve for x
    x = 135,459,339.12/17,478
  6. Step 6: Final answer
    x = 7,750.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.