Home / 14,885.42-20,542.14-8,171.68

Finding the Fourth Proportional to 14,885.42, 20,542.14 and 8,171.68

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Solution

The fourth proportional to 14,885.42, 20,542.14 and 8,171.68 is: 11,277.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,885.42 : 20,542.14 = 8,171.68 : x
  2. Step 2: Convert to fraction form
    14,885.42/20,542.14 = 8,171.68/x
  3. Step 3: Cross multiply
    14,885.42x = 20,542.14 × 8,171.68
  4. Step 4: Simplify right side
    14,885.42x = 167,863,794.60
  5. Step 5: Solve for x
    x = 167,863,794.60/14,885.42
  6. Step 6: Final answer
    x = 11,277.06

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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.