Home / 7,884.64-11,816.28-4,374.48

Finding the Fourth Proportional to 7,884.64, 11,816.28 and 4,374.48

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Solution

The fourth proportional to 7,884.64, 11,816.28 and 4,374.48 is: 6,555.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,884.64 : 11,816.28 = 4,374.48 : x
  2. Step 2: Convert to fraction form
    7,884.64/11,816.28 = 4,374.48/x
  3. Step 3: Cross multiply
    7,884.64x = 11,816.28 × 4,374.48
  4. Step 4: Simplify right side
    7,884.64x = 51,690,080.53
  5. Step 5: Solve for x
    x = 51,690,080.53/7,884.64
  6. Step 6: Final answer
    x = 6,555.79

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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.