Home / 13,601.88-20,402.80-4,242.64

Finding the Fourth Proportional to 13,601.88, 20,402.80 and 4,242.64

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Solution

The fourth proportional to 13,601.88, 20,402.80 and 4,242.64 is: 6,363.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.88 : 20,402.80 = 4,242.64 : x
  2. Step 2: Convert to fraction form
    13,601.88/20,402.80 = 4,242.64/x
  3. Step 3: Cross multiply
    13,601.88x = 20,402.80 × 4,242.64
  4. Step 4: Simplify right side
    13,601.88x = 86,561,735.39
  5. Step 5: Solve for x
    x = 86,561,735.39/13,601.88
  6. Step 6: Final answer
    x = 6,363.95

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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.