Home / 13,536.12-18,681.96-8,232.60

Finding the Fourth Proportional to 13,536.12, 18,681.96 and 8,232.60

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Solution

The fourth proportional to 13,536.12, 18,681.96 and 8,232.60 is: 11,362.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,536.12 : 18,681.96 = 8,232.60 : x
  2. Step 2: Convert to fraction form
    13,536.12/18,681.96 = 8,232.60/x
  3. Step 3: Cross multiply
    13,536.12x = 18,681.96 × 8,232.60
  4. Step 4: Simplify right side
    13,536.12x = 153,801,103.90
  5. Step 5: Solve for x
    x = 153,801,103.90/13,536.12
  6. Step 6: Final answer
    x = 11,362.27

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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.