Home / 8,389.74-12,584.62-3,458.06

Finding the Fourth Proportional to 8,389.74, 12,584.62 and 3,458.06

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Solution

The fourth proportional to 8,389.74, 12,584.62 and 3,458.06 is: 5,187.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389.74 : 12,584.62 = 3,458.06 : x
  2. Step 2: Convert to fraction form
    8,389.74/12,584.62 = 3,458.06/x
  3. Step 3: Cross multiply
    8,389.74x = 12,584.62 × 3,458.06
  4. Step 4: Simplify right side
    8,389.74x = 43,518,371.04
  5. Step 5: Solve for x
    x = 43,518,371.04/8,389.74
  6. Step 6: Final answer
    x = 5,187.09

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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.