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Finding the Fourth Proportional to 17,998.95, 26,999.24 and 5,518.06

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Solution

The fourth proportional to 17,998.95, 26,999.24 and 5,518.06 is: 8,277.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,998.95 : 26,999.24 = 5,518.06 : x
  2. Step 2: Convert to fraction form
    17,998.95/26,999.24 = 5,518.06/x
  3. Step 3: Cross multiply
    17,998.95x = 26,999.24 × 5,518.06
  4. Step 4: Simplify right side
    17,998.95x = 148,983,426.27
  5. Step 5: Solve for x
    x = 148,983,426.27/17,998.95
  6. Step 6: Final answer
    x = 8,277.34

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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.