Home / 18,704.64-28,059.12-4,854.72

Finding the Fourth Proportional to 18,704.64, 28,059.12 and 4,854.72

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Solution

The fourth proportional to 18,704.64, 28,059.12 and 4,854.72 is: 7,282.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704.64 : 28,059.12 = 4,854.72 : x
  2. Step 2: Convert to fraction form
    18,704.64/28,059.12 = 4,854.72/x
  3. Step 3: Cross multiply
    18,704.64x = 28,059.12 × 4,854.72
  4. Step 4: Simplify right side
    18,704.64x = 136,219,171.05
  5. Step 5: Solve for x
    x = 136,219,171.05/18,704.64
  6. Step 6: Final answer
    x = 7,282.64

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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.