Home / 14,878.08-20,531.97-8,163.60

Finding the Fourth Proportional to 14,878.08, 20,531.97 and 8,163.60

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Solution

The fourth proportional to 14,878.08, 20,531.97 and 8,163.60 is: 11,265.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,878.08 : 20,531.97 = 8,163.60 : x
  2. Step 2: Convert to fraction form
    14,878.08/20,531.97 = 8,163.60/x
  3. Step 3: Cross multiply
    14,878.08x = 20,531.97 × 8,163.60
  4. Step 4: Simplify right side
    14,878.08x = 167,614,790.29
  5. Step 5: Solve for x
    x = 167,614,790.29/14,878.08
  6. Step 6: Final answer
    x = 11,265.89

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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.