Home / 18,909.96-28,366.02-5,584.38

Finding the Fourth Proportional to 18,909.96, 28,366.02 and 5,584.38

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Solution

The fourth proportional to 18,909.96, 28,366.02 and 5,584.38 is: 8,376.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,909.96 : 28,366.02 = 5,584.38 : x
  2. Step 2: Convert to fraction form
    18,909.96/28,366.02 = 5,584.38/x
  3. Step 3: Cross multiply
    18,909.96x = 28,366.02 × 5,584.38
  4. Step 4: Simplify right side
    18,909.96x = 158,406,634.77
  5. Step 5: Solve for x
    x = 158,406,634.77/18,909.96
  6. Step 6: Final answer
    x = 8,376.89

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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.