Home / 11,426.20-17,123.23-5,415.89

Finding the Fourth Proportional to 11,426.20, 17,123.23 and 5,415.89

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Solution

The fourth proportional to 11,426.20, 17,123.23 and 5,415.89 is: 8,116.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,426.20 : 17,123.23 = 5,415.89 : x
  2. Step 2: Convert to fraction form
    11,426.20/17,123.23 = 5,415.89/x
  3. Step 3: Cross multiply
    11,426.20x = 17,123.23 × 5,415.89
  4. Step 4: Simplify right side
    11,426.20x = 92,737,530.12
  5. Step 5: Solve for x
    x = 92,737,530.12/11,426.20
  6. Step 6: Final answer
    x = 8,116.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.