Home / 13,238.01-18,272.34-7,575.98

Finding the Fourth Proportional to 13,238.01, 18,272.34 and 7,575.98

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Solution

The fourth proportional to 13,238.01, 18,272.34 and 7,575.98 is: 10,457.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238.01 : 18,272.34 = 7,575.98 : x
  2. Step 2: Convert to fraction form
    13,238.01/18,272.34 = 7,575.98/x
  3. Step 3: Cross multiply
    13,238.01x = 18,272.34 × 7,575.98
  4. Step 4: Simplify right side
    13,238.01x = 138,430,791.03
  5. Step 5: Solve for x
    x = 138,430,791.03/13,238.01
  6. Step 6: Final answer
    x = 10,457.07

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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.