Home / 8,620.02-12,930.57-2,775.87

Finding the Fourth Proportional to 8,620.02, 12,930.57 and 2,775.87

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Solution

The fourth proportional to 8,620.02, 12,930.57 and 2,775.87 is: 4,163.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,620.02 : 12,930.57 = 2,775.87 : x
  2. Step 2: Convert to fraction form
    8,620.02/12,930.57 = 2,775.87/x
  3. Step 3: Cross multiply
    8,620.02x = 12,930.57 × 2,775.87
  4. Step 4: Simplify right side
    8,620.02x = 35,893,581.35
  5. Step 5: Solve for x
    x = 35,893,581.35/8,620.02
  6. Step 6: Final answer
    x = 4,163.98

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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.