Home / 8,602.25-12,905.39-2,678.85

Finding the Fourth Proportional to 8,602.25, 12,905.39 and 2,678.85

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Solution

The fourth proportional to 8,602.25, 12,905.39 and 2,678.85 is: 4,018.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,602.25 : 12,905.39 = 2,678.85 : x
  2. Step 2: Convert to fraction form
    8,602.25/12,905.39 = 2,678.85/x
  3. Step 3: Cross multiply
    8,602.25x = 12,905.39 × 2,678.85
  4. Step 4: Simplify right side
    8,602.25x = 34,571,610.70
  5. Step 5: Solve for x
    x = 34,571,610.70/8,602.25
  6. Step 6: Final answer
    x = 4,018.91

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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.