Home / 8,389.41-12,585.63-3,456.36

Finding the Fourth Proportional to 8,389.41, 12,585.63 and 3,456.36

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Solution

The fourth proportional to 8,389.41, 12,585.63 and 3,456.36 is: 5,185.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389.41 : 12,585.63 = 3,456.36 : x
  2. Step 2: Convert to fraction form
    8,389.41/12,585.63 = 3,456.36/x
  3. Step 3: Cross multiply
    8,389.41x = 12,585.63 × 3,456.36
  4. Step 4: Simplify right side
    8,389.41x = 43,500,468.11
  5. Step 5: Solve for x
    x = 43,500,468.11/8,389.41
  6. Step 6: Final answer
    x = 5,185.16

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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.