Home / 11,128.43-15,358.92-6,348.35

Finding the Fourth Proportional to 11,128.43, 15,358.92 and 6,348.35

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Solution

The fourth proportional to 11,128.43, 15,358.92 and 6,348.35 is: 8,761.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.43 : 15,358.92 = 6,348.35 : x
  2. Step 2: Convert to fraction form
    11,128.43/15,358.92 = 6,348.35/x
  3. Step 3: Cross multiply
    11,128.43x = 15,358.92 × 6,348.35
  4. Step 4: Simplify right side
    11,128.43x = 97,503,799.78
  5. Step 5: Solve for x
    x = 97,503,799.78/11,128.43
  6. Step 6: Final answer
    x = 8,761.69

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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.