Home / 17,985.85-26,975.70-8,122.82

Finding the Fourth Proportional to 17,985.85, 26,975.70 and 8,122.82

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Solution

The fourth proportional to 17,985.85, 26,975.70 and 8,122.82 is: 12,182.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,985.85 : 26,975.70 = 8,122.82 : x
  2. Step 2: Convert to fraction form
    17,985.85/26,975.70 = 8,122.82/x
  3. Step 3: Cross multiply
    17,985.85x = 26,975.70 × 8,122.82
  4. Step 4: Simplify right side
    17,985.85x = 219,118,620.60
  5. Step 5: Solve for x
    x = 219,118,620.60/17,985.85
  6. Step 6: Final answer
    x = 12,182.84

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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.