Home / 12,982.24-17,915.48-7,013.89

Finding the Fourth Proportional to 12,982.24, 17,915.48 and 7,013.89

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Solution

The fourth proportional to 12,982.24, 17,915.48 and 7,013.89 is: 9,679.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982.24 : 17,915.48 = 7,013.89 : x
  2. Step 2: Convert to fraction form
    12,982.24/17,915.48 = 7,013.89/x
  3. Step 3: Cross multiply
    12,982.24x = 17,915.48 × 7,013.89
  4. Step 4: Simplify right side
    12,982.24x = 125,657,219.64
  5. Step 5: Solve for x
    x = 125,657,219.64/12,982.24
  6. Step 6: Final answer
    x = 9,679.17

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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.