Home / 8,427.31-11,629.68-4,650.48

Finding the Fourth Proportional to 8,427.31, 11,629.68 and 4,650.48

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Solution

The fourth proportional to 8,427.31, 11,629.68 and 4,650.48 is: 6,417.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.31 : 11,629.68 = 4,650.48 : x
  2. Step 2: Convert to fraction form
    8,427.31/11,629.68 = 4,650.48/x
  3. Step 3: Cross multiply
    8,427.31x = 11,629.68 × 4,650.48
  4. Step 4: Simplify right side
    8,427.31x = 54,083,559.35
  5. Step 5: Solve for x
    x = 54,083,559.35/8,427.31
  6. Step 6: Final answer
    x = 6,417.65

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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.