Home / 13,076.76-19,617.84-5,286.18

Finding the Fourth Proportional to 13,076.76, 19,617.84 and 5,286.18

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Solution

The fourth proportional to 13,076.76, 19,617.84 and 5,286.18 is: 7,930.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,076.76 : 19,617.84 = 5,286.18 : x
  2. Step 2: Convert to fraction form
    13,076.76/19,617.84 = 5,286.18/x
  3. Step 3: Cross multiply
    13,076.76x = 19,617.84 × 5,286.18
  4. Step 4: Simplify right side
    13,076.76x = 103,703,433.45
  5. Step 5: Solve for x
    x = 103,703,433.45/13,076.76
  6. Step 6: Final answer
    x = 7,930.36

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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.