Home / 10,076.81-15,092.20-4,815.54

Finding the Fourth Proportional to 10,076.81, 15,092.20 and 4,815.54

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Solution

The fourth proportional to 10,076.81, 15,092.20 and 4,815.54 is: 7,212.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,076.81 : 15,092.20 = 4,815.54 : x
  2. Step 2: Convert to fraction form
    10,076.81/15,092.20 = 4,815.54/x
  3. Step 3: Cross multiply
    10,076.81x = 15,092.20 × 4,815.54
  4. Step 4: Simplify right side
    10,076.81x = 72,677,098.81
  5. Step 5: Solve for x
    x = 72,677,098.81/10,076.81
  6. Step 6: Final answer
    x = 7,212.32

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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.