Home / 8,427.10-11,629.43-4,650.38

Finding the Fourth Proportional to 8,427.10, 11,629.43 and 4,650.38

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Solution

The fourth proportional to 8,427.10, 11,629.43 and 4,650.38 is: 6,417.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.10 : 11,629.43 = 4,650.38 : x
  2. Step 2: Convert to fraction form
    8,427.10/11,629.43 = 4,650.38/x
  3. Step 3: Cross multiply
    8,427.10x = 11,629.43 × 4,650.38
  4. Step 4: Simplify right side
    8,427.10x = 54,081,216.35
  5. Step 5: Solve for x
    x = 54,081,216.35/8,427.10
  6. Step 6: Final answer
    x = 6,417.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.