Home / 13,586.08-18,748.82-7,536.75

Finding the Fourth Proportional to 13,586.08, 18,748.82 and 7,536.75

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Solution

The fourth proportional to 13,586.08, 18,748.82 and 7,536.75 is: 10,400.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.08 : 18,748.82 = 7,536.75 : x
  2. Step 2: Convert to fraction form
    13,586.08/18,748.82 = 7,536.75/x
  3. Step 3: Cross multiply
    13,586.08x = 18,748.82 × 7,536.75
  4. Step 4: Simplify right side
    13,586.08x = 141,305,169.14
  5. Step 5: Solve for x
    x = 141,305,169.14/13,586.08
  6. Step 6: Final answer
    x = 10,400.73

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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.