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Finding the Fourth Proportional to 17,999.55, 26,999.33 and 7,611.30

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Solution

The fourth proportional to 17,999.55, 26,999.33 and 7,611.30 is: 11,416.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,999.55 : 26,999.33 = 7,611.30 : x
  2. Step 2: Convert to fraction form
    17,999.55/26,999.33 = 7,611.30/x
  3. Step 3: Cross multiply
    17,999.55x = 26,999.33 × 7,611.30
  4. Step 4: Simplify right side
    17,999.55x = 205,499,962.37
  5. Step 5: Solve for x
    x = 205,499,962.37/17,999.55
  6. Step 6: Final answer
    x = 11,416.95

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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.