Home / 14,885.62-20,540.87-8,171.22

Finding the Fourth Proportional to 14,885.62, 20,540.87 and 8,171.22

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Solution

The fourth proportional to 14,885.62, 20,540.87 and 8,171.22 is: 11,275.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,885.62 : 20,540.87 = 8,171.22 : x
  2. Step 2: Convert to fraction form
    14,885.62/20,540.87 = 8,171.22/x
  3. Step 3: Cross multiply
    14,885.62x = 20,540.87 × 8,171.22
  4. Step 4: Simplify right side
    14,885.62x = 167,843,926.91
  5. Step 5: Solve for x
    x = 167,843,926.91/14,885.62
  6. Step 6: Final answer
    x = 11,275.58

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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.