Home / 8,636.02-12,939.45-6,901

Finding the Fourth Proportional to 8,636.02, 12,939.45 and 6,901

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Solution

The fourth proportional to 8,636.02, 12,939.45 and 6,901 is: 10,339.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,636.02 : 12,939.45 = 6,901 : x
  2. Step 2: Convert to fraction form
    8,636.02/12,939.45 = 6,901/x
  3. Step 3: Cross multiply
    8,636.02x = 12,939.45 × 6,901
  4. Step 4: Simplify right side
    8,636.02x = 89,295,144.45
  5. Step 5: Solve for x
    x = 89,295,144.45/8,636.02
  6. Step 6: Final answer
    x = 10,339.85

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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.