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Finding the Fourth Proportional to 10,992.02, 15,168.67 and 6,454.63

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Solution

The fourth proportional to 10,992.02, 15,168.67 and 6,454.63 is: 8,907.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.02 : 15,168.67 = 6,454.63 : x
  2. Step 2: Convert to fraction form
    10,992.02/15,168.67 = 6,454.63/x
  3. Step 3: Cross multiply
    10,992.02x = 15,168.67 × 6,454.63
  4. Step 4: Simplify right side
    10,992.02x = 97,908,152.44
  5. Step 5: Solve for x
    x = 97,908,152.44/10,992.02
  6. Step 6: Final answer
    x = 8,907.20

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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.