Home / 10,647.33-15,968.79-10,120.47

Finding the Fourth Proportional to 10,647.33, 15,968.79 and 10,120.47

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Solution

The fourth proportional to 10,647.33, 15,968.79 and 10,120.47 is: 15,178.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,647.33 : 15,968.79 = 10,120.47 : x
  2. Step 2: Convert to fraction form
    10,647.33/15,968.79 = 10,120.47/x
  3. Step 3: Cross multiply
    10,647.33x = 15,968.79 × 10,120.47
  4. Step 4: Simplify right side
    10,647.33x = 161,611,660.13
  5. Step 5: Solve for x
    x = 161,611,660.13/10,647.33
  6. Step 6: Final answer
    x = 15,178.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.