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Finding the Fourth Proportional to 18,860.37, 28,247.49 and 9,006.59

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Solution

The fourth proportional to 18,860.37, 28,247.49 and 9,006.59 is: 13,489.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,860.37 : 28,247.49 = 9,006.59 : x
  2. Step 2: Convert to fraction form
    18,860.37/28,247.49 = 9,006.59/x
  3. Step 3: Cross multiply
    18,860.37x = 28,247.49 × 9,006.59
  4. Step 4: Simplify right side
    18,860.37x = 254,413,419.72
  5. Step 5: Solve for x
    x = 254,413,419.72/18,860.37
  6. Step 6: Final answer
    x = 13,489.31

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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.