Home / 14,877.90-20,531.72-8,163.41

Finding the Fourth Proportional to 14,877.90, 20,531.72 and 8,163.41

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Solution

The fourth proportional to 14,877.90, 20,531.72 and 8,163.41 is: 11,265.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,877.90 : 20,531.72 = 8,163.41 : x
  2. Step 2: Convert to fraction form
    14,877.90/20,531.72 = 8,163.41/x
  3. Step 3: Cross multiply
    14,877.90x = 20,531.72 × 8,163.41
  4. Step 4: Simplify right side
    14,877.90x = 167,608,704.89
  5. Step 5: Solve for x
    x = 167,608,704.89/14,877.90
  6. Step 6: Final answer
    x = 11,265.62

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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.