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Finding the Fourth Proportional to 34,640.64, 51,965.55 and 11,259.18

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Solution

The fourth proportional to 34,640.64, 51,965.55 and 11,259.18 is: 16,890.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,640.64 : 51,965.55 = 11,259.18 : x
  2. Step 2: Convert to fraction form
    34,640.64/51,965.55 = 11,259.18/x
  3. Step 3: Cross multiply
    34,640.64x = 51,965.55 × 11,259.18
  4. Step 4: Simplify right side
    34,640.64x = 585,089,481.25
  5. Step 5: Solve for x
    x = 585,089,481.25/34,640.64
  6. Step 6: Final answer
    x = 16,890.26

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1.5x scale

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.