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Finding the Fourth Proportional to 18,853, 28,267.02 and 8,993.80

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Solution

The fourth proportional to 18,853, 28,267.02 and 8,993.80 is: 13,484.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,853 : 28,267.02 = 8,993.80 : x
  2. Step 2: Convert to fraction form
    18,853/28,267.02 = 8,993.80/x
  3. Step 3: Cross multiply
    18,853x = 28,267.02 × 8,993.80
  4. Step 4: Simplify right side
    18,853x = 254,227,924.48
  5. Step 5: Solve for x
    x = 254,227,924.48/18,853
  6. Step 6: Final answer
    x = 13,484.75

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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.