Home / 14,512.91-20,028.04-8,140.92

Finding the Fourth Proportional to 14,512.91, 20,028.04 and 8,140.92

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Solution

The fourth proportional to 14,512.91, 20,028.04 and 8,140.92 is: 11,234.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,512.91 : 20,028.04 = 8,140.92 : x
  2. Step 2: Convert to fraction form
    14,512.91/20,028.04 = 8,140.92/x
  3. Step 3: Cross multiply
    14,512.91x = 20,028.04 × 8,140.92
  4. Step 4: Simplify right side
    14,512.91x = 163,046,571.26
  5. Step 5: Solve for x
    x = 163,046,571.26/14,512.91
  6. Step 6: Final answer
    x = 11,234.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.