Home / 12,623.36-18,935.16-3,389.36

Finding the Fourth Proportional to 12,623.36, 18,935.16 and 3,389.36

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Solution

The fourth proportional to 12,623.36, 18,935.16 and 3,389.36 is: 5,084.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,623.36 : 18,935.16 = 3,389.36 : x
  2. Step 2: Convert to fraction form
    12,623.36/18,935.16 = 3,389.36/x
  3. Step 3: Cross multiply
    12,623.36x = 18,935.16 × 3,389.36
  4. Step 4: Simplify right side
    12,623.36x = 64,178,073.90
  5. Step 5: Solve for x
    x = 64,178,073.90/12,623.36
  6. Step 6: Final answer
    x = 5,084.07

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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.