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Finding the Fourth Proportional to 15,051.82, 20,770.71 and 8,337.34

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Solution

The fourth proportional to 15,051.82, 20,770.71 and 8,337.34 is: 11,505.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,051.82 : 20,770.71 = 8,337.34 : x
  2. Step 2: Convert to fraction form
    15,051.82/20,770.71 = 8,337.34/x
  3. Step 3: Cross multiply
    15,051.82x = 20,770.71 × 8,337.34
  4. Step 4: Simplify right side
    15,051.82x = 173,172,471.31
  5. Step 5: Solve for x
    x = 173,172,471.31/15,051.82
  6. Step 6: Final answer
    x = 11,505.09

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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.