Home / 10,442.24-15,662.72-4,286.08

Finding the Fourth Proportional to 10,442.24, 15,662.72 and 4,286.08

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Solution

The fourth proportional to 10,442.24, 15,662.72 and 4,286.08 is: 6,428.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,442.24 : 15,662.72 = 4,286.08 : x
  2. Step 2: Convert to fraction form
    10,442.24/15,662.72 = 4,286.08/x
  3. Step 3: Cross multiply
    10,442.24x = 15,662.72 × 4,286.08
  4. Step 4: Simplify right side
    10,442.24x = 67,131,670.94
  5. Step 5: Solve for x
    x = 67,131,670.94/10,442.24
  6. Step 6: Final answer
    x = 6,428.86

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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.