Home / 8,829.81-12,185.10-5,052.78

Finding the Fourth Proportional to 8,829.81, 12,185.10 and 5,052.78

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Solution

The fourth proportional to 8,829.81, 12,185.10 and 5,052.78 is: 6,972.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,829.81 : 12,185.10 = 5,052.78 : x
  2. Step 2: Convert to fraction form
    8,829.81/12,185.10 = 5,052.78/x
  3. Step 3: Cross multiply
    8,829.81x = 12,185.10 × 5,052.78
  4. Step 4: Simplify right side
    8,829.81x = 61,568,629.58
  5. Step 5: Solve for x
    x = 61,568,629.58/8,829.81
  6. Step 6: Final answer
    x = 6,972.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.