Home / 13,860.74-20,791.21-5,541.46

Finding the Fourth Proportional to 13,860.74, 20,791.21 and 5,541.46

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Solution

The fourth proportional to 13,860.74, 20,791.21 and 5,541.46 is: 8,312.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.74 : 20,791.21 = 5,541.46 : x
  2. Step 2: Convert to fraction form
    13,860.74/20,791.21 = 5,541.46/x
  3. Step 3: Cross multiply
    13,860.74x = 20,791.21 × 5,541.46
  4. Step 4: Simplify right side
    13,860.74x = 115,213,658.57
  5. Step 5: Solve for x
    x = 115,213,658.57/13,860.74
  6. Step 6: Final answer
    x = 8,312.23

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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.