Home / 8,653.19-12,980.87-3,387.52

Finding the Fourth Proportional to 8,653.19, 12,980.87 and 3,387.52

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Solution

The fourth proportional to 8,653.19, 12,980.87 and 3,387.52 is: 5,081.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,653.19 : 12,980.87 = 3,387.52 : x
  2. Step 2: Convert to fraction form
    8,653.19/12,980.87 = 3,387.52/x
  3. Step 3: Cross multiply
    8,653.19x = 12,980.87 × 3,387.52
  4. Step 4: Simplify right side
    8,653.19x = 43,972,939.80
  5. Step 5: Solve for x
    x = 43,972,939.80/8,653.19
  6. Step 6: Final answer
    x = 5,081.71

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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.