Home / 8,692.36-13,021.26-5,605

Finding the Fourth Proportional to 8,692.36, 13,021.26 and 5,605

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Solution

The fourth proportional to 8,692.36, 13,021.26 and 5,605 is: 8,396.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,692.36 : 13,021.26 = 5,605 : x
  2. Step 2: Convert to fraction form
    8,692.36/13,021.26 = 5,605/x
  3. Step 3: Cross multiply
    8,692.36x = 13,021.26 × 5,605
  4. Step 4: Simplify right side
    8,692.36x = 72,984,162.30
  5. Step 5: Solve for x
    x = 72,984,162.30/8,692.36
  6. Step 6: Final answer
    x = 8,396.36

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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.