Home / 10,128.44-15,193.92-4,283.58

Finding the Fourth Proportional to 10,128.44, 15,193.92 and 4,283.58

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Solution

The fourth proportional to 10,128.44, 15,193.92 and 4,283.58 is: 6,425.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128.44 : 15,193.92 = 4,283.58 : x
  2. Step 2: Convert to fraction form
    10,128.44/15,193.92 = 4,283.58/x
  3. Step 3: Cross multiply
    10,128.44x = 15,193.92 × 4,283.58
  4. Step 4: Simplify right side
    10,128.44x = 65,084,371.83
  5. Step 5: Solve for x
    x = 65,084,371.83/10,128.44
  6. Step 6: Final answer
    x = 6,425.90

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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.