Home / 12,829.44-17,706.08-7,240

Finding the Fourth Proportional to 12,829.44, 17,706.08 and 7,240

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Solution

The fourth proportional to 12,829.44, 17,706.08 and 7,240 is: 9,992.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,829.44 : 17,706.08 = 7,240 : x
  2. Step 2: Convert to fraction form
    12,829.44/17,706.08 = 7,240/x
  3. Step 3: Cross multiply
    12,829.44x = 17,706.08 × 7,240
  4. Step 4: Simplify right side
    12,829.44x = 128,192,019.20
  5. Step 5: Solve for x
    x = 128,192,019.20/12,829.44
  6. Step 6: Final answer
    x = 9,992.02

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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.