Home / 8,256.40-12,386.89-3,324.88

Finding the Fourth Proportional to 8,256.40, 12,386.89 and 3,324.88

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Solution

The fourth proportional to 8,256.40, 12,386.89 and 3,324.88 is: 4,988.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,256.40 : 12,386.89 = 3,324.88 : x
  2. Step 2: Convert to fraction form
    8,256.40/12,386.89 = 3,324.88/x
  3. Step 3: Cross multiply
    8,256.40x = 12,386.89 × 3,324.88
  4. Step 4: Simplify right side
    8,256.40x = 41,184,942.46
  5. Step 5: Solve for x
    x = 41,184,942.46/8,256.40
  6. Step 6: Final answer
    x = 4,988.25

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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.