Home / 13,201.01-18,217.55-7,536.53

Finding the Fourth Proportional to 13,201.01, 18,217.55 and 7,536.53

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Solution

The fourth proportional to 13,201.01, 18,217.55 and 7,536.53 is: 10,400.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,201.01 : 18,217.55 = 7,536.53 : x
  2. Step 2: Convert to fraction form
    13,201.01/18,217.55 = 7,536.53/x
  3. Step 3: Cross multiply
    13,201.01x = 18,217.55 × 7,536.53
  4. Step 4: Simplify right side
    13,201.01x = 137,296,983.33
  5. Step 5: Solve for x
    x = 137,296,983.33/13,201.01
  6. Step 6: Final answer
    x = 10,400.49

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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.