Home / 13,650.04-20,462.87-5,328.12

Finding the Fourth Proportional to 13,650.04, 20,462.87 and 5,328.12

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Solution

The fourth proportional to 13,650.04, 20,462.87 and 5,328.12 is: 7,987.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.04 : 20,462.87 = 5,328.12 : x
  2. Step 2: Convert to fraction form
    13,650.04/20,462.87 = 5,328.12/x
  3. Step 3: Cross multiply
    13,650.04x = 20,462.87 × 5,328.12
  4. Step 4: Simplify right side
    13,650.04x = 109,028,716.96
  5. Step 5: Solve for x
    x = 109,028,716.96/13,650.04
  6. Step 6: Final answer
    x = 7,987.43

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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.