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Finding the Fourth Proportional to 13,708.58, 20,571.06 and 12,593.20

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Solution

The fourth proportional to 13,708.58, 20,571.06 and 12,593.20 is: 18,897.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.58 : 20,571.06 = 12,593.20 : x
  2. Step 2: Convert to fraction form
    13,708.58/20,571.06 = 12,593.20/x
  3. Step 3: Cross multiply
    13,708.58x = 20,571.06 × 12,593.20
  4. Step 4: Simplify right side
    13,708.58x = 259,055,472.79
  5. Step 5: Solve for x
    x = 259,055,472.79/13,708.58
  6. Step 6: Final answer
    x = 18,897.32

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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.