Home / 19,152.95-28,705.14-8,611.70

Finding the Fourth Proportional to 19,152.95, 28,705.14 and 8,611.70

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Solution

The fourth proportional to 19,152.95, 28,705.14 and 8,611.70 is: 12,906.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,152.95 : 28,705.14 = 8,611.70 : x
  2. Step 2: Convert to fraction form
    19,152.95/28,705.14 = 8,611.70/x
  3. Step 3: Cross multiply
    19,152.95x = 28,705.14 × 8,611.70
  4. Step 4: Simplify right side
    19,152.95x = 247,199,910.61
  5. Step 5: Solve for x
    x = 247,199,910.61/19,152.95
  6. Step 6: Final answer
    x = 12,906.63

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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.