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Finding the Fourth Proportional to 18,671.51, 27,999.07 and 5,524.91

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Solution

The fourth proportional to 18,671.51, 27,999.07 and 5,524.91 is: 8,284.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,671.51 : 27,999.07 = 5,524.91 : x
  2. Step 2: Convert to fraction form
    18,671.51/27,999.07 = 5,524.91/x
  3. Step 3: Cross multiply
    18,671.51x = 27,999.07 × 5,524.91
  4. Step 4: Simplify right side
    18,671.51x = 154,692,293.02
  5. Step 5: Solve for x
    x = 154,692,293.02/18,671.51
  6. Step 6: Final answer
    x = 8,284.94

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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.