Home / 13,601.39-20,402.06-4,242.15

Finding the Fourth Proportional to 13,601.39, 20,402.06 and 4,242.15

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Solution

The fourth proportional to 13,601.39, 20,402.06 and 4,242.15 is: 6,363.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.39 : 20,402.06 = 4,242.15 : x
  2. Step 2: Convert to fraction form
    13,601.39/20,402.06 = 4,242.15/x
  3. Step 3: Cross multiply
    13,601.39x = 20,402.06 × 4,242.15
  4. Step 4: Simplify right side
    13,601.39x = 86,548,577.62
  5. Step 5: Solve for x
    x = 86,548,577.62/13,601.39
  6. Step 6: Final answer
    x = 6,363.22

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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.