Home / 13,207.19-19,792.96-6,638.09

Finding the Fourth Proportional to 13,207.19, 19,792.96 and 6,638.09

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Solution

The fourth proportional to 13,207.19, 19,792.96 and 6,638.09 is: 9,948.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.19 : 19,792.96 = 6,638.09 : x
  2. Step 2: Convert to fraction form
    13,207.19/19,792.96 = 6,638.09/x
  3. Step 3: Cross multiply
    13,207.19x = 19,792.96 × 6,638.09
  4. Step 4: Simplify right side
    13,207.19x = 131,387,334.29
  5. Step 5: Solve for x
    x = 131,387,334.29/13,207.19
  6. Step 6: Final answer
    x = 9,948.17

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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.