Home / 13,165.29-18,179.91-12,246.75

Finding the Fourth Proportional to 13,165.29, 18,179.91 and 12,246.75

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Solution

The fourth proportional to 13,165.29, 18,179.91 and 12,246.75 is: 16,911.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,165.29 : 18,179.91 = 12,246.75 : x
  2. Step 2: Convert to fraction form
    13,165.29/18,179.91 = 12,246.75/x
  3. Step 3: Cross multiply
    13,165.29x = 18,179.91 × 12,246.75
  4. Step 4: Simplify right side
    13,165.29x = 222,644,812.79
  5. Step 5: Solve for x
    x = 222,644,812.79/13,165.29
  6. Step 6: Final answer
    x = 16,911.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.