Home / 8,449.03-12,669.20-4,939.81

Finding the Fourth Proportional to 8,449.03, 12,669.20 and 4,939.81

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Solution

The fourth proportional to 8,449.03, 12,669.20 and 4,939.81 is: 7,407.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,449.03 : 12,669.20 = 4,939.81 : x
  2. Step 2: Convert to fraction form
    8,449.03/12,669.20 = 4,939.81/x
  3. Step 3: Cross multiply
    8,449.03x = 12,669.20 × 4,939.81
  4. Step 4: Simplify right side
    8,449.03x = 62,583,352.81
  5. Step 5: Solve for x
    x = 62,583,352.81/8,449.03
  6. Step 6: Final answer
    x = 7,407.17

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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.