Home / 12,982.29-17,915.54-7,013.94

Finding the Fourth Proportional to 12,982.29, 17,915.54 and 7,013.94

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Solution

The fourth proportional to 12,982.29, 17,915.54 and 7,013.94 is: 9,679.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982.29 : 17,915.54 = 7,013.94 : x
  2. Step 2: Convert to fraction form
    12,982.29/17,915.54 = 7,013.94/x
  3. Step 3: Cross multiply
    12,982.29x = 17,915.54 × 7,013.94
  4. Step 4: Simplify right side
    12,982.29x = 125,658,453.97
  5. Step 5: Solve for x
    x = 125,658,453.97/12,982.29
  6. Step 6: Final answer
    x = 9,679.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.