Home / 13,553.30-20,339.67-5,767.58

Finding the Fourth Proportional to 13,553.30, 20,339.67 and 5,767.58

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Solution

The fourth proportional to 13,553.30, 20,339.67 and 5,767.58 is: 8,655.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553.30 : 20,339.67 = 5,767.58 : x
  2. Step 2: Convert to fraction form
    13,553.30/20,339.67 = 5,767.58/x
  3. Step 3: Cross multiply
    13,553.30x = 20,339.67 × 5,767.58
  4. Step 4: Simplify right side
    13,553.30x = 117,310,673.90
  5. Step 5: Solve for x
    x = 117,310,673.90/13,553.30
  6. Step 6: Final answer
    x = 8,655.51

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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.