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Finding the Fourth Proportional to 17,855.55, 26,785.76 and 6,766.11

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Solution

The fourth proportional to 17,855.55, 26,785.76 and 6,766.11 is: 10,150.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,855.55 : 26,785.76 = 6,766.11 : x
  2. Step 2: Convert to fraction form
    17,855.55/26,785.76 = 6,766.11/x
  3. Step 3: Cross multiply
    17,855.55x = 26,785.76 × 6,766.11
  4. Step 4: Simplify right side
    17,855.55x = 181,235,364.76
  5. Step 5: Solve for x
    x = 181,235,364.76/17,855.55
  6. Step 6: Final answer
    x = 10,150.09

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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.