Home / 13,782.64-20,674.68-4,549.36

Finding the Fourth Proportional to 13,782.64, 20,674.68 and 4,549.36

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Solution

The fourth proportional to 13,782.64, 20,674.68 and 4,549.36 is: 6,824.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,782.64 : 20,674.68 = 4,549.36 : x
  2. Step 2: Convert to fraction form
    13,782.64/20,674.68 = 4,549.36/x
  3. Step 3: Cross multiply
    13,782.64x = 20,674.68 × 4,549.36
  4. Step 4: Simplify right side
    13,782.64x = 94,056,562.20
  5. Step 5: Solve for x
    x = 94,056,562.20/13,782.64
  6. Step 6: Final answer
    x = 6,824.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.