Home / 15,190.98-20,963.60-8,476.89

Finding the Fourth Proportional to 15,190.98, 20,963.60 and 8,476.89

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Solution

The fourth proportional to 15,190.98, 20,963.60 and 8,476.89 is: 11,698.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,190.98 : 20,963.60 = 8,476.89 : x
  2. Step 2: Convert to fraction form
    15,190.98/20,963.60 = 8,476.89/x
  3. Step 3: Cross multiply
    15,190.98x = 20,963.60 × 8,476.89
  4. Step 4: Simplify right side
    15,190.98x = 177,706,131.20
  5. Step 5: Solve for x
    x = 177,706,131.20/15,190.98
  6. Step 6: Final answer
    x = 11,698.13

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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.