Home / 7,128.25-10,676.05-4,348.79

Finding the Fourth Proportional to 7,128.25, 10,676.05 and 4,348.79

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Solution

The fourth proportional to 7,128.25, 10,676.05 and 4,348.79 is: 6,513.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128.25 : 10,676.05 = 4,348.79 : x
  2. Step 2: Convert to fraction form
    7,128.25/10,676.05 = 4,348.79/x
  3. Step 3: Cross multiply
    7,128.25x = 10,676.05 × 4,348.79
  4. Step 4: Simplify right side
    7,128.25x = 46,427,899.72
  5. Step 5: Solve for x
    x = 46,427,899.72/7,128.25
  6. Step 6: Final answer
    x = 6,513.22

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1.5x scale

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.