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Finding the Fourth Proportional to 18,829.50, 28,248.59 and 6,517.50

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Solution

The fourth proportional to 18,829.50, 28,248.59 and 6,517.50 is: 9,777.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829.50 : 28,248.59 = 6,517.50 : x
  2. Step 2: Convert to fraction form
    18,829.50/28,248.59 = 6,517.50/x
  3. Step 3: Cross multiply
    18,829.50x = 28,248.59 × 6,517.50
  4. Step 4: Simplify right side
    18,829.50x = 184,110,185.33
  5. Step 5: Solve for x
    x = 184,110,185.33/18,829.50
  6. Step 6: Final answer
    x = 9,777.75

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1.5x scale

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.