Home / 10,286.47-15,429.75-2,495.28

Finding the Fourth Proportional to 10,286.47, 15,429.75 and 2,495.28

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Solution

The fourth proportional to 10,286.47, 15,429.75 and 2,495.28 is: 3,742.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,286.47 : 15,429.75 = 2,495.28 : x
  2. Step 2: Convert to fraction form
    10,286.47/15,429.75 = 2,495.28/x
  3. Step 3: Cross multiply
    10,286.47x = 15,429.75 × 2,495.28
  4. Step 4: Simplify right side
    10,286.47x = 38,501,546.58
  5. Step 5: Solve for x
    x = 38,501,546.58/10,286.47
  6. Step 6: Final answer
    x = 3,742.93

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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.