Home / 10,389.63-15,584.45-2,791.02

Finding the Fourth Proportional to 10,389.63, 15,584.45 and 2,791.02

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Solution

The fourth proportional to 10,389.63, 15,584.45 and 2,791.02 is: 4,186.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389.63 : 15,584.45 = 2,791.02 : x
  2. Step 2: Convert to fraction form
    10,389.63/15,584.45 = 2,791.02/x
  3. Step 3: Cross multiply
    10,389.63x = 15,584.45 × 2,791.02
  4. Step 4: Simplify right side
    10,389.63x = 43,496,497.68
  5. Step 5: Solve for x
    x = 43,496,497.68/10,389.63
  6. Step 6: Final answer
    x = 4,186.53

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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.