Home / 13,286.31-19,915.79-5,894.25

Finding the Fourth Proportional to 13,286.31, 19,915.79 and 5,894.25

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Solution

The fourth proportional to 13,286.31, 19,915.79 and 5,894.25 is: 8,835.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.31 : 19,915.79 = 5,894.25 : x
  2. Step 2: Convert to fraction form
    13,286.31/19,915.79 = 5,894.25/x
  3. Step 3: Cross multiply
    13,286.31x = 19,915.79 × 5,894.25
  4. Step 4: Simplify right side
    13,286.31x = 117,388,659.94
  5. Step 5: Solve for x
    x = 117,388,659.94/13,286.31
  6. Step 6: Final answer
    x = 8,835.31

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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.