Home / 13,236.48-19,843.20-6,657.12

Finding the Fourth Proportional to 13,236.48, 19,843.20 and 6,657.12

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Solution

The fourth proportional to 13,236.48, 19,843.20 and 6,657.12 is: 9,979.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236.48 : 19,843.20 = 6,657.12 : x
  2. Step 2: Convert to fraction form
    13,236.48/19,843.20 = 6,657.12/x
  3. Step 3: Cross multiply
    13,236.48x = 19,843.20 × 6,657.12
  4. Step 4: Simplify right side
    13,236.48x = 132,098,563.58
  5. Step 5: Solve for x
    x = 132,098,563.58/13,236.48
  6. Step 6: Final answer
    x = 9,979.89

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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.