Home / 13,728.60-20,593.64-4,369.36

Finding the Fourth Proportional to 13,728.60, 20,593.64 and 4,369.36

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Solution

The fourth proportional to 13,728.60, 20,593.64 and 4,369.36 is: 6,554.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728.60 : 20,593.64 = 4,369.36 : x
  2. Step 2: Convert to fraction form
    13,728.60/20,593.64 = 4,369.36/x
  3. Step 3: Cross multiply
    13,728.60x = 20,593.64 × 4,369.36
  4. Step 4: Simplify right side
    13,728.60x = 89,981,026.87
  5. Step 5: Solve for x
    x = 89,981,026.87/13,728.60
  6. Step 6: Final answer
    x = 6,554.28

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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.