Home / 14,963.46-20,648.70-8,247.75

Finding the Fourth Proportional to 14,963.46, 20,648.70 and 8,247.75

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Solution

The fourth proportional to 14,963.46, 20,648.70 and 8,247.75 is: 11,381.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,963.46 : 20,648.70 = 8,247.75 : x
  2. Step 2: Convert to fraction form
    14,963.46/20,648.70 = 8,247.75/x
  3. Step 3: Cross multiply
    14,963.46x = 20,648.70 × 8,247.75
  4. Step 4: Simplify right side
    14,963.46x = 170,305,315.43
  5. Step 5: Solve for x
    x = 170,305,315.43/14,963.46
  6. Step 6: Final answer
    x = 11,381.41

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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.