Home / 14,963.20-20,644.64-8,674.32

Finding the Fourth Proportional to 14,963.20, 20,644.64 and 8,674.32

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Solution

The fourth proportional to 14,963.20, 20,644.64 and 8,674.32 is: 11,967.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,963.20 : 20,644.64 = 8,674.32 : x
  2. Step 2: Convert to fraction form
    14,963.20/20,644.64 = 8,674.32/x
  3. Step 3: Cross multiply
    14,963.20x = 20,644.64 × 8,674.32
  4. Step 4: Simplify right side
    14,963.20x = 179,078,213.64
  5. Step 5: Solve for x
    x = 179,078,213.64/14,963.20
  6. Step 6: Final answer
    x = 11,967.91

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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.