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Finding the Fourth Proportional to 15,998.40, 22,077.90 and 8,925.30

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Solution

The fourth proportional to 15,998.40, 22,077.90 and 8,925.30 is: 12,316.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,998.40 : 22,077.90 = 8,925.30 : x
  2. Step 2: Convert to fraction form
    15,998.40/22,077.90 = 8,925.30/x
  3. Step 3: Cross multiply
    15,998.40x = 22,077.90 × 8,925.30
  4. Step 4: Simplify right side
    15,998.40x = 197,051,880.87
  5. Step 5: Solve for x
    x = 197,051,880.87/15,998.40
  6. Step 6: Final answer
    x = 12,316.97

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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.