Home / 13,244.48-19,855.20-6,665.12

Finding the Fourth Proportional to 13,244.48, 19,855.20 and 6,665.12

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Solution

The fourth proportional to 13,244.48, 19,855.20 and 6,665.12 is: 9,991.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,244.48 : 19,855.20 = 6,665.12 : x
  2. Step 2: Convert to fraction form
    13,244.48/19,855.20 = 6,665.12/x
  3. Step 3: Cross multiply
    13,244.48x = 19,855.20 × 6,665.12
  4. Step 4: Simplify right side
    13,244.48x = 132,337,290.62
  5. Step 5: Solve for x
    x = 132,337,290.62/13,244.48
  6. Step 6: Final answer
    x = 9,991.88

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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.