Home / 8,427.38-11,629.78-4,701.38

Finding the Fourth Proportional to 8,427.38, 11,629.78 and 4,701.38

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Solution

The fourth proportional to 8,427.38, 11,629.78 and 4,701.38 is: 6,487.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.38 : 11,629.78 = 4,701.38 : x
  2. Step 2: Convert to fraction form
    8,427.38/11,629.78 = 4,701.38/x
  3. Step 3: Cross multiply
    8,427.38x = 11,629.78 × 4,701.38
  4. Step 4: Simplify right side
    8,427.38x = 54,675,945.19
  5. Step 5: Solve for x
    x = 54,675,945.19/8,427.38
  6. Step 6: Final answer
    x = 6,487.90

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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.