Home / 8,936.30-13,399.32-3,386.11

Finding the Fourth Proportional to 8,936.30, 13,399.32 and 3,386.11

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Solution

The fourth proportional to 8,936.30, 13,399.32 and 3,386.11 is: 5,077.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.30 : 13,399.32 = 3,386.11 : x
  2. Step 2: Convert to fraction form
    8,936.30/13,399.32 = 3,386.11/x
  3. Step 3: Cross multiply
    8,936.30x = 13,399.32 × 3,386.11
  4. Step 4: Simplify right side
    8,936.30x = 45,371,521.02
  5. Step 5: Solve for x
    x = 45,371,521.02/8,936.30
  6. Step 6: Final answer
    x = 5,077.22

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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.