Home / 13,791.96-20,669.49-5,018.58

Finding the Fourth Proportional to 13,791.96, 20,669.49 and 5,018.58

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Solution

The fourth proportional to 13,791.96, 20,669.49 and 5,018.58 is: 7,521.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,791.96 : 20,669.49 = 5,018.58 : x
  2. Step 2: Convert to fraction form
    13,791.96/20,669.49 = 5,018.58/x
  3. Step 3: Cross multiply
    13,791.96x = 20,669.49 × 5,018.58
  4. Step 4: Simplify right side
    13,791.96x = 103,731,489.12
  5. Step 5: Solve for x
    x = 103,731,489.12/13,791.96
  6. Step 6: Final answer
    x = 7,521.16

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1.5x scale

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.