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Finding the Fourth Proportional to 7,953.97, 11,926.90 and 3,019.86

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Solution

The fourth proportional to 7,953.97, 11,926.90 and 3,019.86 is: 4,528.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,953.97 : 11,926.90 = 3,019.86 : x
  2. Step 2: Convert to fraction form
    7,953.97/11,926.90 = 3,019.86/x
  3. Step 3: Cross multiply
    7,953.97x = 11,926.90 × 3,019.86
  4. Step 4: Simplify right side
    7,953.97x = 36,017,568.23
  5. Step 5: Solve for x
    x = 36,017,568.23/7,953.97
  6. Step 6: Final answer
    x = 4,528.25

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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.