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Finding the Fourth Proportional to 13,302.80, 19,954.20 and 9,630.80

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Solution

The fourth proportional to 13,302.80, 19,954.20 and 9,630.80 is: 14,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,302.80 : 19,954.20 = 9,630.80 : x
  2. Step 2: Convert to fraction form
    13,302.80/19,954.20 = 9,630.80/x
  3. Step 3: Cross multiply
    13,302.80x = 19,954.20 × 9,630.80
  4. Step 4: Simplify right side
    13,302.80x = 192,174,909.36
  5. Step 5: Solve for x
    x = 192,174,909.36/13,302.80
  6. Step 6: Final answer
    x = 14,446.20

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Similar ratio
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1.5x scale

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.