Home / 8,222.40-12,330.36-2,955.96

Finding the Fourth Proportional to 8,222.40, 12,330.36 and 2,955.96

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Solution

The fourth proportional to 8,222.40, 12,330.36 and 2,955.96 is: 4,432.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,222.40 : 12,330.36 = 2,955.96 : x
  2. Step 2: Convert to fraction form
    8,222.40/12,330.36 = 2,955.96/x
  3. Step 3: Cross multiply
    8,222.40x = 12,330.36 × 2,955.96
  4. Step 4: Simplify right side
    8,222.40x = 36,448,050.95
  5. Step 5: Solve for x
    x = 36,448,050.95/8,222.40
  6. Step 6: Final answer
    x = 4,432.78

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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.