Home / 10,431.46-15,648.14-3,411.51

Finding the Fourth Proportional to 10,431.46, 15,648.14 and 3,411.51

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Solution

The fourth proportional to 10,431.46, 15,648.14 and 3,411.51 is: 5,117.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.46 : 15,648.14 = 3,411.51 : x
  2. Step 2: Convert to fraction form
    10,431.46/15,648.14 = 3,411.51/x
  3. Step 3: Cross multiply
    10,431.46x = 15,648.14 × 3,411.51
  4. Step 4: Simplify right side
    10,431.46x = 53,383,786.09
  5. Step 5: Solve for x
    x = 53,383,786.09/10,431.46
  6. Step 6: Final answer
    x = 5,117.58

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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.