Home / 13,976.89-20,959.19-7,401.54

Finding the Fourth Proportional to 13,976.89, 20,959.19 and 7,401.54

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Solution

The fourth proportional to 13,976.89, 20,959.19 and 7,401.54 is: 11,099.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.89 : 20,959.19 = 7,401.54 : x
  2. Step 2: Convert to fraction form
    13,976.89/20,959.19 = 7,401.54/x
  3. Step 3: Cross multiply
    13,976.89x = 20,959.19 × 7,401.54
  4. Step 4: Simplify right side
    13,976.89x = 155,130,283.15
  5. Step 5: Solve for x
    x = 155,130,283.15/13,976.89
  6. Step 6: Final answer
    x = 11,099.06

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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.