Home / 14,505.12-20,013.48-8,536.32

Finding the Fourth Proportional to 14,505.12, 20,013.48 and 8,536.32

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Solution

The fourth proportional to 14,505.12, 20,013.48 and 8,536.32 is: 11,778.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,505.12 : 20,013.48 = 8,536.32 : x
  2. Step 2: Convert to fraction form
    14,505.12/20,013.48 = 8,536.32/x
  3. Step 3: Cross multiply
    14,505.12x = 20,013.48 × 8,536.32
  4. Step 4: Simplify right side
    14,505.12x = 170,841,469.59
  5. Step 5: Solve for x
    x = 170,841,469.59/14,505.12
  6. Step 6: Final answer
    x = 11,778.01

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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.