Home / 12,576.97-18,867.74-5,177.32

Finding the Fourth Proportional to 12,576.97, 18,867.74 and 5,177.32

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Solution

The fourth proportional to 12,576.97, 18,867.74 and 5,177.32 is: 7,766.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.97 : 18,867.74 = 5,177.32 : x
  2. Step 2: Convert to fraction form
    12,576.97/18,867.74 = 5,177.32/x
  3. Step 3: Cross multiply
    12,576.97x = 18,867.74 × 5,177.32
  4. Step 4: Simplify right side
    12,576.97x = 97,684,254.60
  5. Step 5: Solve for x
    x = 97,684,254.60/12,576.97
  6. Step 6: Final answer
    x = 7,766.91

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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.