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Finding the Fourth Proportional to 15,051.30, 20,770.02 and 8,245.14

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Solution

The fourth proportional to 15,051.30, 20,770.02 and 8,245.14 is: 11,377.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,051.30 : 20,770.02 = 8,245.14 : x
  2. Step 2: Convert to fraction form
    15,051.30/20,770.02 = 8,245.14/x
  3. Step 3: Cross multiply
    15,051.30x = 20,770.02 × 8,245.14
  4. Step 4: Simplify right side
    15,051.30x = 171,251,722.70
  5. Step 5: Solve for x
    x = 171,251,722.70/15,051.30
  6. Step 6: Final answer
    x = 11,377.87

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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.