Home / 14,107.79-21,162.36-11,638.04

Finding the Fourth Proportional to 14,107.79, 21,162.36 and 11,638.04

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Solution

The fourth proportional to 14,107.79, 21,162.36 and 11,638.04 is: 17,457.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,107.79 : 21,162.36 = 11,638.04 : x
  2. Step 2: Convert to fraction form
    14,107.79/21,162.36 = 11,638.04/x
  3. Step 3: Cross multiply
    14,107.79x = 21,162.36 × 11,638.04
  4. Step 4: Simplify right side
    14,107.79x = 246,288,286.36
  5. Step 5: Solve for x
    x = 246,288,286.36/14,107.79
  6. Step 6: Final answer
    x = 17,457.62

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1.5x scale

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.