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Finding the Fourth Proportional to 8,472.79, 11,692.47 and 4,695.99

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Solution

The fourth proportional to 8,472.79, 11,692.47 and 4,695.99 is: 6,480.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.79 : 11,692.47 = 4,695.99 : x
  2. Step 2: Convert to fraction form
    8,472.79/11,692.47 = 4,695.99/x
  3. Step 3: Cross multiply
    8,472.79x = 11,692.47 × 4,695.99
  4. Step 4: Simplify right side
    8,472.79x = 54,907,722.20
  5. Step 5: Solve for x
    x = 54,907,722.20/8,472.79
  6. Step 6: Final answer
    x = 6,480.48

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.