Home / 14,885.83-20,542.70-8,172.09

Finding the Fourth Proportional to 14,885.83, 20,542.70 and 8,172.09

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Solution

The fourth proportional to 14,885.83, 20,542.70 and 8,172.09 is: 11,277.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,885.83 : 20,542.70 = 8,172.09 : x
  2. Step 2: Convert to fraction form
    14,885.83/20,542.70 = 8,172.09/x
  3. Step 3: Cross multiply
    14,885.83x = 20,542.70 × 8,172.09
  4. Step 4: Simplify right side
    14,885.83x = 167,876,793.24
  5. Step 5: Solve for x
    x = 167,876,793.24/14,885.83
  6. Step 6: Final answer
    x = 11,277.62

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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.