Home / 19,792.48-29,687.68-6,645.12

Finding the Fourth Proportional to 19,792.48, 29,687.68 and 6,645.12

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Solution

The fourth proportional to 19,792.48, 29,687.68 and 6,645.12 is: 9,967.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,792.48 : 29,687.68 = 6,645.12 : x
  2. Step 2: Convert to fraction form
    19,792.48/29,687.68 = 6,645.12/x
  3. Step 3: Cross multiply
    19,792.48x = 29,687.68 × 6,645.12
  4. Step 4: Simplify right side
    19,792.48x = 197,278,196.12
  5. Step 5: Solve for x
    x = 197,278,196.12/19,792.48
  6. Step 6: Final answer
    x = 9,967.33

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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.