Home / 9,213.60-13,822.55-2,639.60

Finding the Fourth Proportional to 9,213.60, 13,822.55 and 2,639.60

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Solution

The fourth proportional to 9,213.60, 13,822.55 and 2,639.60 is: 3,960.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,213.60 : 13,822.55 = 2,639.60 : x
  2. Step 2: Convert to fraction form
    9,213.60/13,822.55 = 2,639.60/x
  3. Step 3: Cross multiply
    9,213.60x = 13,822.55 × 2,639.60
  4. Step 4: Simplify right side
    9,213.60x = 36,486,060.15
  5. Step 5: Solve for x
    x = 36,486,060.15/9,213.60
  6. Step 6: Final answer
    x = 3,960.02

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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.