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Finding the Fourth Proportional to 10,992.49, 15,170.37 and 6,210.77

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Solution

The fourth proportional to 10,992.49, 15,170.37 and 6,210.77 is: 8,571.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.49 : 15,170.37 = 6,210.77 : x
  2. Step 2: Convert to fraction form
    10,992.49/15,170.37 = 6,210.77/x
  3. Step 3: Cross multiply
    10,992.49x = 15,170.37 × 6,210.77
  4. Step 4: Simplify right side
    10,992.49x = 94,219,678.88
  5. Step 5: Solve for x
    x = 94,219,678.88/10,992.49
  6. Step 6: Final answer
    x = 8,571.28

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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.