Home / 8,579.90-12,845.59-5,452.16

Finding the Fourth Proportional to 8,579.90, 12,845.59 and 5,452.16

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Solution

The fourth proportional to 8,579.90, 12,845.59 and 5,452.16 is: 8,162.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.90 : 12,845.59 = 5,452.16 : x
  2. Step 2: Convert to fraction form
    8,579.90/12,845.59 = 5,452.16/x
  3. Step 3: Cross multiply
    8,579.90x = 12,845.59 × 5,452.16
  4. Step 4: Simplify right side
    8,579.90x = 70,036,134.12
  5. Step 5: Solve for x
    x = 70,036,134.12/8,579.90
  6. Step 6: Final answer
    x = 8,162.81

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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.