Home / 15,191.25-20,963.85-8,476.46

Finding the Fourth Proportional to 15,191.25, 20,963.85 and 8,476.46

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Solution

The fourth proportional to 15,191.25, 20,963.85 and 8,476.46 is: 11,697.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,191.25 : 20,963.85 = 8,476.46 : x
  2. Step 2: Convert to fraction form
    15,191.25/20,963.85 = 8,476.46/x
  3. Step 3: Cross multiply
    15,191.25x = 20,963.85 × 8,476.46
  4. Step 4: Simplify right side
    15,191.25x = 177,699,131.15
  5. Step 5: Solve for x
    x = 177,699,131.15/15,191.25
  6. Step 6: Final answer
    x = 11,697.47

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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.