Home / 8,579.36-11,846.90-5,397.95

Finding the Fourth Proportional to 8,579.36, 11,846.90 and 5,397.95

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Solution

The fourth proportional to 8,579.36, 11,846.90 and 5,397.95 is: 7,453.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.36 : 11,846.90 = 5,397.95 : x
  2. Step 2: Convert to fraction form
    8,579.36/11,846.90 = 5,397.95/x
  3. Step 3: Cross multiply
    8,579.36x = 11,846.90 × 5,397.95
  4. Step 4: Simplify right side
    8,579.36x = 63,948,996.72
  5. Step 5: Solve for x
    x = 63,948,996.72/8,579.36
  6. Step 6: Final answer
    x = 7,453.82

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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.