Home / 8,187.47-12,283.63-3,807.53

Finding the Fourth Proportional to 8,187.47, 12,283.63 and 3,807.53

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Solution

The fourth proportional to 8,187.47, 12,283.63 and 3,807.53 is: 5,712.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187.47 : 12,283.63 = 3,807.53 : x
  2. Step 2: Convert to fraction form
    8,187.47/12,283.63 = 3,807.53/x
  3. Step 3: Cross multiply
    8,187.47x = 12,283.63 × 3,807.53
  4. Step 4: Simplify right side
    8,187.47x = 46,770,218.80
  5. Step 5: Solve for x
    x = 46,770,218.80/8,187.47
  6. Step 6: Final answer
    x = 5,712.42

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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.