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Finding the Fourth Proportional to 12,630.53, 17,430.21 and 6,965.48

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Solution

The fourth proportional to 12,630.53, 17,430.21 and 6,965.48 is: 9,612.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,630.53 : 17,430.21 = 6,965.48 : x
  2. Step 2: Convert to fraction form
    12,630.53/17,430.21 = 6,965.48/x
  3. Step 3: Cross multiply
    12,630.53x = 17,430.21 × 6,965.48
  4. Step 4: Simplify right side
    12,630.53x = 121,409,692.00
  5. Step 5: Solve for x
    x = 121,409,692.00/12,630.53
  6. Step 6: Final answer
    x = 9,612.40

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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.