Home / 11,700.90-17,539.20-6,427.80

Finding the Fourth Proportional to 11,700.90, 17,539.20 and 6,427.80

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Solution

The fourth proportional to 11,700.90, 17,539.20 and 6,427.80 is: 9,635.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,700.90 : 17,539.20 = 6,427.80 : x
  2. Step 2: Convert to fraction form
    11,700.90/17,539.20 = 6,427.80/x
  3. Step 3: Cross multiply
    11,700.90x = 17,539.20 × 6,427.80
  4. Step 4: Simplify right side
    11,700.90x = 112,738,469.76
  5. Step 5: Solve for x
    x = 112,738,469.76/11,700.90
  6. Step 6: Final answer
    x = 9,635.03

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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.