Home / 13,042.89-17,997.66-7,378.29

Finding the Fourth Proportional to 13,042.89, 17,997.66 and 7,378.29

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Solution

The fourth proportional to 13,042.89, 17,997.66 and 7,378.29 is: 10,181.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,042.89 : 17,997.66 = 7,378.29 : x
  2. Step 2: Convert to fraction form
    13,042.89/17,997.66 = 7,378.29/x
  3. Step 3: Cross multiply
    13,042.89x = 17,997.66 × 7,378.29
  4. Step 4: Simplify right side
    13,042.89x = 132,791,954.80
  5. Step 5: Solve for x
    x = 132,791,954.80/13,042.89
  6. Step 6: Final answer
    x = 10,181.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.