Home / 13,982.76-20,983.84-9,040.14

Finding the Fourth Proportional to 13,982.76, 20,983.84 and 9,040.14

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Solution

The fourth proportional to 13,982.76, 20,983.84 and 9,040.14 is: 13,566.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,982.76 : 20,983.84 = 9,040.14 : x
  2. Step 2: Convert to fraction form
    13,982.76/20,983.84 = 9,040.14/x
  3. Step 3: Cross multiply
    13,982.76x = 20,983.84 × 9,040.14
  4. Step 4: Simplify right side
    13,982.76x = 189,696,851.34
  5. Step 5: Solve for x
    x = 189,696,851.34/13,982.76
  6. Step 6: Final answer
    x = 13,566.48

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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.