Home / 13,188.68-19,780.94-6,173.56

Finding the Fourth Proportional to 13,188.68, 19,780.94 and 6,173.56

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Solution

The fourth proportional to 13,188.68, 19,780.94 and 6,173.56 is: 9,259.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188.68 : 19,780.94 = 6,173.56 : x
  2. Step 2: Convert to fraction form
    13,188.68/19,780.94 = 6,173.56/x
  3. Step 3: Cross multiply
    13,188.68x = 19,780.94 × 6,173.56
  4. Step 4: Simplify right side
    13,188.68x = 122,118,819.95
  5. Step 5: Solve for x
    x = 122,118,819.95/13,188.68
  6. Step 6: Final answer
    x = 9,259.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.