Home / 8,724.49-12,040.05-4,745.86

Finding the Fourth Proportional to 8,724.49, 12,040.05 and 4,745.86

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Solution

The fourth proportional to 8,724.49, 12,040.05 and 4,745.86 is: 6,549.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.49 : 12,040.05 = 4,745.86 : x
  2. Step 2: Convert to fraction form
    8,724.49/12,040.05 = 4,745.86/x
  3. Step 3: Cross multiply
    8,724.49x = 12,040.05 × 4,745.86
  4. Step 4: Simplify right side
    8,724.49x = 57,140,349.73
  5. Step 5: Solve for x
    x = 57,140,349.73/8,724.49
  6. Step 6: Final answer
    x = 6,549.42

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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.