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Finding the Fourth Proportional to 18,884.67, 28,327.07 and 8,484.27

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Solution

The fourth proportional to 18,884.67, 28,327.07 and 8,484.27 is: 12,726.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,884.67 : 28,327.07 = 8,484.27 : x
  2. Step 2: Convert to fraction form
    18,884.67/28,327.07 = 8,484.27/x
  3. Step 3: Cross multiply
    18,884.67x = 28,327.07 × 8,484.27
  4. Step 4: Simplify right side
    18,884.67x = 240,334,510.19
  5. Step 5: Solve for x
    x = 240,334,510.19/18,884.67
  6. Step 6: Final answer
    x = 12,726.43

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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.