Home / 12,304.80-16,963.60-8,319.60

Finding the Fourth Proportional to 12,304.80, 16,963.60 and 8,319.60

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Solution

The fourth proportional to 12,304.80, 16,963.60 and 8,319.60 is: 11,469.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,304.80 : 16,963.60 = 8,319.60 : x
  2. Step 2: Convert to fraction form
    12,304.80/16,963.60 = 8,319.60/x
  3. Step 3: Cross multiply
    12,304.80x = 16,963.60 × 8,319.60
  4. Step 4: Simplify right side
    12,304.80x = 141,130,366.56
  5. Step 5: Solve for x
    x = 141,130,366.56/12,304.80
  6. Step 6: Final answer
    x = 11,469.54

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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.