Home / 14,786.27-20,405.13-8,071.88

Finding the Fourth Proportional to 14,786.27, 20,405.13 and 8,071.88

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Solution

The fourth proportional to 14,786.27, 20,405.13 and 8,071.88 is: 11,139.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,786.27 : 20,405.13 = 8,071.88 : x
  2. Step 2: Convert to fraction form
    14,786.27/20,405.13 = 8,071.88/x
  3. Step 3: Cross multiply
    14,786.27x = 20,405.13 × 8,071.88
  4. Step 4: Simplify right side
    14,786.27x = 164,707,658.72
  5. Step 5: Solve for x
    x = 164,707,658.72/14,786.27
  6. Step 6: Final answer
    x = 11,139.23

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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.