Home / 8,287.12-12,426.84-4,825.36

Finding the Fourth Proportional to 8,287.12, 12,426.84 and 4,825.36

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Solution

The fourth proportional to 8,287.12, 12,426.84 and 4,825.36 is: 7,235.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,287.12 : 12,426.84 = 4,825.36 : x
  2. Step 2: Convert to fraction form
    8,287.12/12,426.84 = 4,825.36/x
  3. Step 3: Cross multiply
    8,287.12x = 12,426.84 × 4,825.36
  4. Step 4: Simplify right side
    8,287.12x = 59,963,976.66
  5. Step 5: Solve for x
    x = 59,963,976.66/8,287.12
  6. Step 6: Final answer
    x = 7,235.80

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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.