Home / 8,152.14-12,228.50-2,887.70

Finding the Fourth Proportional to 8,152.14, 12,228.50 and 2,887.70

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Solution

The fourth proportional to 8,152.14, 12,228.50 and 2,887.70 is: 4,331.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,152.14 : 12,228.50 = 2,887.70 : x
  2. Step 2: Convert to fraction form
    8,152.14/12,228.50 = 2,887.70/x
  3. Step 3: Cross multiply
    8,152.14x = 12,228.50 × 2,887.70
  4. Step 4: Simplify right side
    8,152.14x = 35,312,239.45
  5. Step 5: Solve for x
    x = 35,312,239.45/8,152.14
  6. Step 6: Final answer
    x = 4,331.65

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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.