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Finding the Fourth Proportional to 15,999.98, 22,079.94 and 8,925.98

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Solution

The fourth proportional to 15,999.98, 22,079.94 and 8,925.98 is: 12,317.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.98 : 22,079.94 = 8,925.98 : x
  2. Step 2: Convert to fraction form
    15,999.98/22,079.94 = 8,925.98/x
  3. Step 3: Cross multiply
    15,999.98x = 22,079.94 × 8,925.98
  4. Step 4: Simplify right side
    15,999.98x = 197,085,102.84
  5. Step 5: Solve for x
    x = 197,085,102.84/15,999.98
  6. Step 6: Final answer
    x = 12,317.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.