Home / 8,689.37-13,034.31-3,424.17

Finding the Fourth Proportional to 8,689.37, 13,034.31 and 3,424.17

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Solution

The fourth proportional to 8,689.37, 13,034.31 and 3,424.17 is: 5,136.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,689.37 : 13,034.31 = 3,424.17 : x
  2. Step 2: Convert to fraction form
    8,689.37/13,034.31 = 3,424.17/x
  3. Step 3: Cross multiply
    8,689.37x = 13,034.31 × 3,424.17
  4. Step 4: Simplify right side
    8,689.37x = 44,631,693.27
  5. Step 5: Solve for x
    x = 44,631,693.27/8,689.37
  6. Step 6: Final answer
    x = 5,136.36

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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.