Home / 17,685.11-26,520.60-7,817.42

Finding the Fourth Proportional to 17,685.11, 26,520.60 and 7,817.42

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Solution

The fourth proportional to 17,685.11, 26,520.60 and 7,817.42 is: 11,723.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,685.11 : 26,520.60 = 7,817.42 : x
  2. Step 2: Convert to fraction form
    17,685.11/26,520.60 = 7,817.42/x
  3. Step 3: Cross multiply
    17,685.11x = 26,520.60 × 7,817.42
  4. Step 4: Simplify right side
    17,685.11x = 207,322,668.85
  5. Step 5: Solve for x
    x = 207,322,668.85/17,685.11
  6. Step 6: Final answer
    x = 11,723.01

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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.