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Finding the Fourth Proportional to 10,888.32, 15,025.32 and 6,172.92

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Solution

The fourth proportional to 10,888.32, 15,025.32 and 6,172.92 is: 8,518.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,888.32 : 15,025.32 = 6,172.92 : x
  2. Step 2: Convert to fraction form
    10,888.32/15,025.32 = 6,172.92/x
  3. Step 3: Cross multiply
    10,888.32x = 15,025.32 × 6,172.92
  4. Step 4: Simplify right side
    10,888.32x = 92,750,098.33
  5. Step 5: Solve for x
    x = 92,750,098.33/10,888.32
  6. Step 6: Final answer
    x = 8,518.31

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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.