Home / 13,982.75-20,983.84-9,040.13

Finding the Fourth Proportional to 13,982.75, 20,983.84 and 9,040.13

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Solution

The fourth proportional to 13,982.75, 20,983.84 and 9,040.13 is: 13,566.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,982.75 : 20,983.84 = 9,040.13 : x
  2. Step 2: Convert to fraction form
    13,982.75/20,983.84 = 9,040.13/x
  3. Step 3: Cross multiply
    13,982.75x = 20,983.84 × 9,040.13
  4. Step 4: Simplify right side
    13,982.75x = 189,696,641.50
  5. Step 5: Solve for x
    x = 189,696,641.50/13,982.75
  6. Step 6: Final answer
    x = 13,566.48

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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.