Home / 11,620.91-17,429.53-9,659.14

Finding the Fourth Proportional to 11,620.91, 17,429.53 and 9,659.14

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Solution

The fourth proportional to 11,620.91, 17,429.53 and 9,659.14 is: 14,487.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620.91 : 17,429.53 = 9,659.14 : x
  2. Step 2: Convert to fraction form
    11,620.91/17,429.53 = 9,659.14/x
  3. Step 3: Cross multiply
    11,620.91x = 17,429.53 × 9,659.14
  4. Step 4: Simplify right side
    11,620.91x = 168,354,270.40
  5. Step 5: Solve for x
    x = 168,354,270.40/11,620.91
  6. Step 6: Final answer
    x = 14,487.18

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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.