Home / 8,724.68-12,040.08-4,745.79

Finding the Fourth Proportional to 8,724.68, 12,040.08 and 4,745.79

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Solution

The fourth proportional to 8,724.68, 12,040.08 and 4,745.79 is: 6,549.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.68 : 12,040.08 = 4,745.79 : x
  2. Step 2: Convert to fraction form
    8,724.68/12,040.08 = 4,745.79/x
  3. Step 3: Cross multiply
    8,724.68x = 12,040.08 × 4,745.79
  4. Step 4: Simplify right side
    8,724.68x = 57,139,691.26
  5. Step 5: Solve for x
    x = 57,139,691.26/8,724.68
  6. Step 6: Final answer
    x = 6,549.20

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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.