Home / 13,284.42-19,928.52-4,520.76

Finding the Fourth Proportional to 13,284.42, 19,928.52 and 4,520.76

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Solution

The fourth proportional to 13,284.42, 19,928.52 and 4,520.76 is: 6,781.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,284.42 : 19,928.52 = 4,520.76 : x
  2. Step 2: Convert to fraction form
    13,284.42/19,928.52 = 4,520.76/x
  3. Step 3: Cross multiply
    13,284.42x = 19,928.52 × 4,520.76
  4. Step 4: Simplify right side
    13,284.42x = 90,092,056.08
  5. Step 5: Solve for x
    x = 90,092,056.08/13,284.42
  6. Step 6: Final answer
    x = 6,781.78

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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.