Home / 10,129.34-15,195.62-4,286

Finding the Fourth Proportional to 10,129.34, 15,195.62 and 4,286

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Solution

The fourth proportional to 10,129.34, 15,195.62 and 4,286 is: 6,429.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.34 : 15,195.62 = 4,286 : x
  2. Step 2: Convert to fraction form
    10,129.34/15,195.62 = 4,286/x
  3. Step 3: Cross multiply
    10,129.34x = 15,195.62 × 4,286
  4. Step 4: Simplify right side
    10,129.34x = 65,128,427.32
  5. Step 5: Solve for x
    x = 65,128,427.32/10,129.34
  6. Step 6: Final answer
    x = 6,429.68

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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.