Home / 19,792.40-29,689.97-6,645.80

Finding the Fourth Proportional to 19,792.40, 29,689.97 and 6,645.80

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Solution

The fourth proportional to 19,792.40, 29,689.97 and 6,645.80 is: 9,969.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,792.40 : 29,689.97 = 6,645.80 : x
  2. Step 2: Convert to fraction form
    19,792.40/29,689.97 = 6,645.80/x
  3. Step 3: Cross multiply
    19,792.40x = 29,689.97 × 6,645.80
  4. Step 4: Simplify right side
    19,792.40x = 197,313,495.31
  5. Step 5: Solve for x
    x = 197,313,495.31/19,792.40
  6. Step 6: Final answer
    x = 9,969.15

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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.