Home / 8,650.38-12,977.40-2,806.54

Finding the Fourth Proportional to 8,650.38, 12,977.40 and 2,806.54

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Solution

The fourth proportional to 8,650.38, 12,977.40 and 2,806.54 is: 4,210.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,650.38 : 12,977.40 = 2,806.54 : x
  2. Step 2: Convert to fraction form
    8,650.38/12,977.40 = 2,806.54/x
  3. Step 3: Cross multiply
    8,650.38x = 12,977.40 × 2,806.54
  4. Step 4: Simplify right side
    8,650.38x = 36,421,513.28
  5. Step 5: Solve for x
    x = 36,421,513.28/8,650.38
  6. Step 6: Final answer
    x = 4,210.39

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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.