Home / 10,286.88-15,430.36-2,495.72

Finding the Fourth Proportional to 10,286.88, 15,430.36 and 2,495.72

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Solution

The fourth proportional to 10,286.88, 15,430.36 and 2,495.72 is: 3,743.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,286.88 : 15,430.36 = 2,495.72 : x
  2. Step 2: Convert to fraction form
    10,286.88/15,430.36 = 2,495.72/x
  3. Step 3: Cross multiply
    10,286.88x = 15,430.36 × 2,495.72
  4. Step 4: Simplify right side
    10,286.88x = 38,509,858.06
  5. Step 5: Solve for x
    x = 38,509,858.06/10,286.88
  6. Step 6: Final answer
    x = 3,743.59

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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.