Home / 8,469.12-11,687.38-4,692.30

Finding the Fourth Proportional to 8,469.12, 11,687.38 and 4,692.30

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Solution

The fourth proportional to 8,469.12, 11,687.38 and 4,692.30 is: 6,475.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,469.12 : 11,687.38 = 4,692.30 : x
  2. Step 2: Convert to fraction form
    8,469.12/11,687.38 = 4,692.30/x
  3. Step 3: Cross multiply
    8,469.12x = 11,687.38 × 4,692.30
  4. Step 4: Simplify right side
    8,469.12x = 54,840,693.17
  5. Step 5: Solve for x
    x = 54,840,693.17/8,469.12
  6. Step 6: Final answer
    x = 6,475.37

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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.