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Finding the Fourth Proportional to 17,759.80, 26,630.10 and 7,372.60

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Solution

The fourth proportional to 17,759.80, 26,630.10 and 7,372.60 is: 11,054.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,759.80 : 26,630.10 = 7,372.60 : x
  2. Step 2: Convert to fraction form
    17,759.80/26,630.10 = 7,372.60/x
  3. Step 3: Cross multiply
    17,759.80x = 26,630.10 × 7,372.60
  4. Step 4: Simplify right side
    17,759.80x = 196,333,075.26
  5. Step 5: Solve for x
    x = 196,333,075.26/17,759.80
  6. Step 6: Final answer
    x = 11,054.91

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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.