Home / 19,087.59-28,611.78-8,000.71

Finding the Fourth Proportional to 19,087.59, 28,611.78 and 8,000.71

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Solution

The fourth proportional to 19,087.59, 28,611.78 and 8,000.71 is: 11,992.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,087.59 : 28,611.78 = 8,000.71 : x
  2. Step 2: Convert to fraction form
    19,087.59/28,611.78 = 8,000.71/x
  3. Step 3: Cross multiply
    19,087.59x = 28,611.78 × 8,000.71
  4. Step 4: Simplify right side
    19,087.59x = 228,914,554.36
  5. Step 5: Solve for x
    x = 228,914,554.36/19,087.59
  6. Step 6: Final answer
    x = 11,992.85

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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.