Home / 13,925.06-20,857.34-8,571.92

Finding the Fourth Proportional to 13,925.06, 20,857.34 and 8,571.92

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Solution

The fourth proportional to 13,925.06, 20,857.34 and 8,571.92 is: 12,839.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,925.06 : 20,857.34 = 8,571.92 : x
  2. Step 2: Convert to fraction form
    13,925.06/20,857.34 = 8,571.92/x
  3. Step 3: Cross multiply
    13,925.06x = 20,857.34 × 8,571.92
  4. Step 4: Simplify right side
    13,925.06x = 178,787,530.43
  5. Step 5: Solve for x
    x = 178,787,530.43/13,925.06
  6. Step 6: Final answer
    x = 12,839.26

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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.