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Finding the Fourth Proportional to 17,950.86, 26,926.62 and 7,818.21

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Solution

The fourth proportional to 17,950.86, 26,926.62 and 7,818.21 is: 11,727.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,950.86 : 26,926.62 = 7,818.21 : x
  2. Step 2: Convert to fraction form
    17,950.86/26,926.62 = 7,818.21/x
  3. Step 3: Cross multiply
    17,950.86x = 26,926.62 × 7,818.21
  4. Step 4: Simplify right side
    17,950.86x = 210,517,969.75
  5. Step 5: Solve for x
    x = 210,517,969.75/17,950.86
  6. Step 6: Final answer
    x = 11,727.46

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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.