Home / 13,661.42-20,497.30-5,347.38

Finding the Fourth Proportional to 13,661.42, 20,497.30 and 5,347.38

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Solution

The fourth proportional to 13,661.42, 20,497.30 and 5,347.38 is: 8,023.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,661.42 : 20,497.30 = 5,347.38 : x
  2. Step 2: Convert to fraction form
    13,661.42/20,497.30 = 5,347.38/x
  3. Step 3: Cross multiply
    13,661.42x = 20,497.30 × 5,347.38
  4. Step 4: Simplify right side
    13,661.42x = 109,606,825.34
  5. Step 5: Solve for x
    x = 109,606,825.34/13,661.42
  6. Step 6: Final answer
    x = 8,023.09

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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.