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Finding the Fourth Proportional to 14,821.01, 20,452.72 and 8,106.48

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Solution

The fourth proportional to 14,821.01, 20,452.72 and 8,106.48 is: 11,186.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,821.01 : 20,452.72 = 8,106.48 : x
  2. Step 2: Convert to fraction form
    14,821.01/20,452.72 = 8,106.48/x
  3. Step 3: Cross multiply
    14,821.01x = 20,452.72 × 8,106.48
  4. Step 4: Simplify right side
    14,821.01x = 165,799,616.76
  5. Step 5: Solve for x
    x = 165,799,616.76/14,821.01
  6. Step 6: Final answer
    x = 11,186.80

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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.